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1
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0009568674
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For a comprehensive compilation of antifeeding clerodane diterpenoids and related compounds, see: Ph.D. thesis, Wageningen Agricultural University, chapter 2
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For a comprehensive compilation of antifeeding clerodane diterpenoids and related compounds, see: E.A. klein Gebbinck, Ph.D. thesis, Wageningen Agricultural University, 1999, chapter 2.
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(1999)
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Klein Gebbinck, E.A.1
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2
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37049105562
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(a) S.V. Ley, D. Neuhaus, N.S. Simpkins, and A.J. Whittle, J. Chem. Soc. Perkin Trans. I 1982, 2157-2162;
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Ley, S.V.1
Neuhaus, D.2
Simpkins, N.S.3
Whittle, A.J.4
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3
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0020569730
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(b) R.B.M. Geuskens, J.M. Luteyn, and L.M. Schoonhoven, Experientia 1983, 39, 403-404;
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Experientia
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Geuskens, R.B.M.1
Luteyn, J.M.2
Schoonhoven, L.M.3
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4
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0000705707
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(c) W.M. Blaney, M.S.J. Simmonds, S.V. Ley, and P.S. Jones, Entomol. Exp. Appl. 1988, 46, 267-274;
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Blaney, W.M.1
Simmonds, M.S.J.2
Ley, S.V.3
Jones, P.S.4
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5
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0028352461
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(d) W.M. Blaney, A.C. Cuñat, S.V. Ley, F.J. Montgomery, and M.S.J. Simmonds, Tetrahedron Lett. 1994, 35, 4861-4864.
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Tetrahedron Lett.
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Blaney, W.M.1
Cuñat, A.C.2
Ley, S.V.3
Montgomery, F.J.4
Simmonds, M.S.J.5
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6
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0019487721
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Y. Kojima and N. Kato, Tetrahedron 1981, 37, 2527-2538; Y. Kojima and N. Kato, Nippon Kagaku Kaishi 1981, 712-720.
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Kojima, Y.1
Kato, N.2
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8
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0000018481
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For reviews regarding the biological activity of azadirachtin, see: (a)
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For reviews regarding the biological activity of azadirachtin, see: (a) A.J. Mordue (Luntz) and A. Blackwell, J. Insect Physiol. 1993, 39, 903-924;
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J. Insect Physiol.
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Mordue, A.J.1
Blackwell, A.2
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11
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0027962753
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W.M. Blaney, M.S.J. Simmonds, S.V. Ley, J.C. Anderson, S.C. Smith, and A. Wood, Pestic. Sci. 1994, 40, 169- 173.
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Pestic. Sci.
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Blaney, W.M.1
Simmonds, M.S.J.2
Ley, S.V.3
Anderson, J.C.4
Smith, S.C.5
Wood, A.6
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12
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0000559875
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S.V. Ley, D. Santafianos, W.M. Blaney, and M.S.J. Simmonds, Tetrahedron Lett. 1987, 28, 221-224.
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(1987)
Tetrahedron Lett.
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Ley, S.V.1
Santafianos, D.2
Blaney, W.M.3
Simmonds, M.S.J.4
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13
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0000107934
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(a) S.V. Ley, J.C. Anderson, W.M. Blaney, P.S. Jones, Z. Lidert, E.D. Morgan, N.G. Robinson, D. Santafianos, M.S.J. Simmonds, and P.L. Toogood, Tetrahedron 1989, 45, 5175-5192;
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(1989)
Tetrahedron
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Ley, S.V.1
Anderson, J.C.2
Blaney, W.M.3
Jones, P.S.4
Lidert, Z.5
Morgan, E.D.6
Robinson, N.G.7
Santafianos, D.8
Simmonds, M.S.J.9
Toogood, P.L.10
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15
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0009650731
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Strategy in the isolation of insect control substances from plants
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H. Schmutterer, K.R.S. Ascher and H. Rembold (Eds.), Natural pesticides from the Neem tree (Azadirachta Indica A. Juss.), Rottach-Egem, June 1980, GTZ
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(c) E.D. Morgan, Strategy in the isolation of insect control substances from plants. In: H. Schmutterer, K.R.S. Ascher and H. Rembold (Eds.), Natural pesticides from the Neem tree (Azadirachta Indica A. Juss.), Proc. 1st Int. Neem Conf., Rottach-Egem, June 1980, GTZ, 1981, p. 43-52;
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(1981)
Proc. 1st Int. Neem Conf.
, pp. 43-52
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Morgan, E.D.1
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16
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0002741954
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(d) M.S.J. Simmonds, W.M. Blaney, S.V. Ley, J.C. Anderson, R. Bäntali, A.A. Denholm, P. Green, R.B. Grossman, C. Gutteridge, L. Jennens, S.C. Smith, P.L. Toogood, and A. Wood, Entomol. Exp. Appl. 1995, 77, 69-80.
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(1995)
Entomol. Exp. Appl.
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Simmonds, M.S.J.1
Blaney, W.M.2
Ley, S.V.3
Anderson, J.C.4
Bäntali, R.5
Denholm, A.A.6
Green, P.7
Grossman, R.B.8
Gutteridge, C.9
Jennens, L.10
Smith, S.C.11
Toogood, P.L.12
Wood, A.13
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17
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0009578353
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(a) A similar analog has also been proposed and synthesized by Lallemand and coworkers, ref. 9b. However, see also ref. 10
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(a) A similar analog has also been proposed and synthesized by Lallemand and coworkers, ref. 9b. However, see also ref. 10.
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18
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0031902243
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During the preparation of this manuscript the first examples of clerodanes with a 3a-hydroxy-furo[2,3b]furan substituent appeared in the literature
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(b) During the preparation of this manuscript the first examples of clerodanes with a 3a-hydroxy-furo[2,3b]furan substituent appeared in the literature: H. Kizu, N. Sugita, and T. Tomimori, Chem. Pharm. Bull. 1998, 46, 988-1000.
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(1998)
Chem. Pharm. Bull.
, vol.46
, pp. 988-1000
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Kizu, H.1
Sugita, N.2
Tomimori, T.3
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19
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0009650732
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Only a few syntheses of 3a-hydroxy-furo[2,3b]furan-based compounds have been reported
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Only a few syntheses of 3a-hydroxy-furo[2,3b]furan-based compounds have been reported; (a) M. Jalali-Naini and J.Y. Lallemand, Tetrahedron Lett. 1986, 27, 497-500;
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(1986)
Tetrahedron Lett.
, vol.27
, pp. 497-500
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Jalali-Naini, M.1
Lallemand, J.Y.2
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20
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0000421022
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(b) A.P. Brunetière, M. Leclaire, S. Bhatnagar, and J.Y. Lallemand, Tetrahedron Lett. 1989, 30, 341-344;
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(1989)
Tetrahedron Lett.
, vol.30
, pp. 341-344
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Brunetière, A.P.1
Leclaire, M.2
Bhatnagar, S.3
Lallemand, J.Y.4
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22
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0009650733
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In 1989, Lallemand and coworkers announced that biological tests of such a compound (3a-hydroxy-3a,4,5,6a-tetrahydrofuro[2,3b]furan) were in progress (ref. 9b), but despite an extensive search of the available literature we were not able to find any report of these experiments
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In 1989, Lallemand and coworkers announced that biological tests of such a compound (3a-hydroxy-3a,4,5,6a-tetrahydrofuro[2,3b]furan) were in progress (ref. 9b), but despite an extensive search of the available literature we were not able to find any report of these experiments.
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23
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0024581185
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J. Vader, H. Sengers, and Ae. de Groot, Tetrahedron 1989, 45, 2131-2142.
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(1989)
Tetrahedron
, vol.45
, pp. 2131-2142
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Vader, J.1
Sengers, H.2
De Groot, Ae.3
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24
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0009617790
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Prepared via mCPBA oxidation of vinylcyclohexane in 66% yield (bp. 72°C at 15 mmHg)
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Prepared via mCPBA oxidation of vinylcyclohexane in 66% yield (bp. 72°C at 15 mmHg).
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25
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0025875433
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and references cited therein
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J.C. Anderson, S.V. Ley, D. Santafianos, and R.N. Sheppard, Tetrahedron 1991, 47, 6813-6850, and references cited therein.
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(1991)
Tetrahedron
, vol.47
, pp. 6813-6850
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Anderson, J.C.1
Ley, S.V.2
Santafianos, D.3
Sheppard, R.N.4
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26
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0000813536
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T. Mandai, K. Hara, T. Nakajima, M. Kawada, and J. Otera, Tetrahedron Lett. 1983, 24, 4993-4996.
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(1983)
Tetrahedron Lett.
, vol.24
, pp. 4993-4996
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Mandai, T.1
Hara, K.2
Nakajima, T.3
Kawada, M.4
Otera, J.5
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30
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0001424578
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G. Stork and L. Maldonado, J. Am. Chem. Soc. 1971, 93, 5286-5287; Ibid. 1974, 96, 5272-5274.
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(1974)
J. Am. Chem. Soc.
, vol.96
, pp. 5272-5274
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31
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0000495808
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(a) S.D. Rychnovsky, S. Zeller, D.J. Skalitzky, and G. Griesgraber, J. Org. Chem. 1990, 55, 5550-5551;
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(1990)
J. Org. Chem.
, vol.55
, pp. 5550-5551
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Rychnovsky, S.D.1
Zeller, S.2
Skalitzky, D.J.3
Griesgraber, G.4
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32
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0009635123
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Supplementary material from ref. 18a
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(b) Supplementary material from ref. 18a;
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33
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33751500471
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(c) S.D. Rychnovsky, G. Griesgraber, S. Zeller, and D.J. Skalitzky, J. Org. Chem. 1991, 56, 5161-5169;
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(1991)
J. Org. Chem.
, vol.56
, pp. 5161-5169
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Rychnovsky, S.D.1
Griesgraber, G.2
Zeller, S.3
Skalitzky, D.J.4
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36
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0028353225
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(f) S.D. Rychnovsky, G. Griesgraber, and J. Kim, J. Am. Chem. Soc. 1994, 116, 2621-2622.
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(1994)
J. Am. Chem. Soc.
, vol.116
, pp. 2621-2622
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Rychnovsky, S.D.1
Griesgraber, G.2
Kim, J.3
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39
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0009568368
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The assignment of the relative stereochemistry of these compounds was based on comparison with spectral data of related cyanohydrin 1,3-acetonides from ref. 18
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The assignment of the relative stereochemistry of these compounds was based on comparison with spectral data of related cyanohydrin 1,3-acetonides from ref. 18.
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40
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0009579324
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In test reactions we also used 4-cyano-2,2-dimethyl-6-isopropyl-1,3-dioxane instead of 33, to facilitate comparison with results reported in the literature for this compound (ref. 18a,b)
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In test reactions we also used 4-cyano-2,2-dimethyl-6-isopropyl-1,3-dioxane instead of 33, to facilitate comparison with results reported in the literature for this compound (ref. 18a,b).
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41
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0009642243
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All bases used in the original literature (ref. 18) were tried at least once
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All bases used in the original literature (ref. 18) were tried at least once.
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42
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0009645799
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Analytical data for this compound are presented in the experimental section
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Analytical data for this compound are presented in the experimental section.
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44
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33751385878
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(b) S.D. Rychnovsky, B. Rogers, and G.J. Yang, J. Org. Chem. 1993, 58, 3511;
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(1993)
J. Org. Chem.
, vol.58
, pp. 3511
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Rychnovsky, S.D.1
Rogers, B.2
Yang, G.J.3
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45
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0028139170
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(c) L.Y. Brezinski, D.D. Levy, and J.W. Leahy, Tetrahedron Lett. 1994, 35, 7601-7604.
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(1994)
Tetrahedron Lett.
, vol.35
, pp. 7601-7604
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Brezinski, L.Y.1
Levy, D.D.2
Leahy, J.W.3
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46
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0009619240
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note
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13C chemical shift values (d±s.d. in ppm): (a) syn-1,3-diol acetonides with a chair conformation: 19.62±0.39 and 30.02±0.11 (acetonide methyl shifts) and 98.50±0.56 (acetonide acetal shift); (b) anti-acetonides with a twist conformation: 24.70±0.34 (acetonide methyl shifts) and 100.43±0.11 (acetonide acetal shift). Note that for our cyanohydrin 1,3-acetonides the nomenclature (but not the actual configuration) is opposite to the 1,3-diol acetonides, due to the presence of the cyano group which has a higher priority according to the Cahn-Ingold-Prelog system.
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47
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0009602058
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For a prior application of such a spontaneous cyclization, see ref. 13 and references cited therein
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For a prior application of such a spontaneous cyclization, see ref. 13 and references cited therein.
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49
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0009632402
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note
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Some of the model compounds from Figure 4 were also screened for antifeedant activity against other insect species. (a) Compounds 4, 12, 16-19, 50 and 51 were tested with 4th instar larvae of the Colorado potato beetle (Coleoptera: Leptinotarsa decemlineata) on potato leaf discs, using the no-choice bioassay protocol described before (5 mM concentration). None of the compounds tested showed statistically significant activity, except 51 which displayed weak antifeedant activity in the second test period only (1.5-3 h: AI±sem = 15.9±5.5%; p<0.01, Mann-Whitney U test). (b) Compounds 4, 12, 16-19, 19a, 50-52, 54 and 55 were tested against nymphs of the green peach aphid (Homoptera: Myzus persicae) on an artificial diet in a two-choice bioassay (1000 ppm concentration). None of the compounds displayed statistically significant antifeedant activity.
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50
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0000901171
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L. Messchendorp, J.J.A. van Loon, and G.J.Z. Gols, Entomol. Exp. Appl. 1996, 79, 195-202.
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(1996)
Entomol. Exp. Appl.
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, pp. 195-202
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Messchendorp, L.1
Van Loon, J.J.A.2
Gols, G.J.Z.3
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