-
1
-
-
84890849054
-
-
(Eds.: L. B. Wingard, Jr., T. M. Brody, J. Larner, A. Schwartz), Wolfe Publishing, London
-
a) P. H. Doukas in Human Pharmacology (Eds.: L. B. Wingard, Jr., T. M. Brody, J. Larner, A. Schwartz), Wolfe Publishing, London, 1991, pp. 95-113;
-
(1991)
Human Pharmacology
, pp. 95-113
-
-
Doukas, P.H.1
-
2
-
-
0028910158
-
-
b) A. K. Saksena, V. M. Girijavallabhan, R. G. Lovey, R. E. Pike, H. Wang, A. K. Ganguly, B. Morgan, A. Zaks, M. S. Puar, Tetrahedron Lett. 1995, 36, 1787-1790;
-
(1995)
Tetrahedron Lett.
, vol.36
, pp. 1787-1790
-
-
Saksena, A.K.1
Girijavallabhan, V.M.2
Lovey, R.G.3
Pike, R.E.4
Wang, H.5
Ganguly, A.K.6
Morgan, B.7
Zaks, A.8
Puar, M.S.9
-
3
-
-
0027138284
-
-
c) C. de Micheli, M. de Amici, E. Grana, F. Zonta, M. Gianella, A. Pielgentili, Il Farmaco 1993, 48, 1333-1348;
-
(1993)
Il Farmaco
, vol.48
, pp. 1333-1348
-
-
De Micheli, C.1
De Amici, M.2
Grana, E.3
Zonta, F.4
Gianella, M.5
Pielgentili, A.6
-
4
-
-
0017389071
-
-
d) K. Nitta, R. J. Stadelmann, C. H. Eugster, Helv. Chim. Acta 1977, 60, 1747-1752.
-
(1977)
Helv. Chim. Acta
, vol.60
, pp. 1747-1752
-
-
Nitta, K.1
Stadelmann, R.J.2
Eugster, C.H.3
-
5
-
-
0000560517
-
-
K. C. Nicolaou, C. V. C. Prasad, P. K. Somers, C.-K. Hwang, J. Am. Chem. Soc. 1989, 111, 5330-5334.
-
(1989)
J. Am. Chem. Soc.
, vol.111
, pp. 5330-5334
-
-
Nicolaou, K.C.1
Prasad, C.V.C.2
Somers, P.K.3
Hwang, C.-K.4
-
7
-
-
0006183207
-
-
b) B. Roland, M. van Beylen, J. Smid, J. Phys. Chem. 1994, 98, 4707-4712.
-
(1994)
J. Phys. Chem.
, vol.98
, pp. 4707-4712
-
-
Roland, B.1
Van Beylen, M.2
Smid, J.3
-
8
-
-
0028215276
-
-
For recent work on alkoxy radicals see
-
For recent work on alkoxy radicals see: a) J. L. Courtneidge, J. Lusztyk, D. Pagé, Tetrahedron Lett. 1994, 35, 1003-1006;
-
(1994)
Tetrahedron Lett.
, vol.35
, pp. 1003-1006
-
-
Courtneidge, J.L.1
Lusztyk, J.2
Pagé, D.3
-
9
-
-
0028271548
-
-
b) R. L. Dorta, C. G. Francisco, E. Suárez, ibid. 1994, 35, 2049-2052;
-
(1994)
Tetrahedron Lett.
, vol.35
, pp. 2049-2052
-
-
Dorta, R.L.1
Francisco, C.G.2
Suárez, E.3
-
11
-
-
0001669478
-
-
d) M. Foti, K. U. Ingold, J. Lusztyk, J. Am. Chem. Soc. 1994, 116, 9440-9447;
-
(1994)
J. Am. Chem. Soc.
, vol.116
, pp. 9440-9447
-
-
Foti, M.1
Ingold, K.U.2
Lusztyk, J.3
-
12
-
-
0342557552
-
-
e) P. de Armas, J. I. Concepción, C. G. Francisco, R. Hernández, J. A. Salazar, E. Suárez. J. Chem. Soc. Perkin Trans. 1 1989, 405-411;
-
(1989)
J. Chem. Soc. Perkin Trans. 1
, pp. 405-411
-
-
De Armas, P.1
Concepción, J.I.2
Francisco, C.G.3
Hernández, R.4
Salazar, J.A.5
Suárez, E.6
-
15
-
-
0028305024
-
-
b) J. H. Udding, K. J. M. Tuijp, M. N. A. van Zanden, H. Hiemstra, W. N. Speckamp, J. Org. Chem. 1994, 59, 1993-2003.
-
(1994)
J. Org. Chem.
, vol.59
, pp. 1993-2003
-
-
Udding, J.H.1
Tuijp, K.J.M.2
Van Zanden, M.N.A.3
Hiemstra, H.4
Speckamp, W.N.5
-
23
-
-
2542433188
-
-
P. H. J. Carlsen, T. Katsuki, V. S. Martin, K. B. Sharpless, J. Org. Chem. 1981, 46, 3936-3938.
-
(1981)
J. Org. Chem.
, vol.46
, pp. 3936-3938
-
-
Carlsen, P.H.J.1
Katsuki, T.2
Martin, V.S.3
Sharpless, K.B.4
-
26
-
-
0012471608
-
-
Wiley, New York
-
L. F. Fieser, M. Fieser, Reagents in Organic Synthesis, Vol. 1, Wiley, New York, 1967, p. 1180.
-
(1967)
Reagents in Organic Synthesis
, vol.1
, pp. 1180
-
-
Fieser, L.F.1
Fieser, M.2
-
27
-
-
0013444640
-
-
a) S. Kim, B. S. Lee, J. H. Park, Bull. Korean Chem. Soc. 1993, 14, 654;
-
(1993)
Bull. Korean Chem. Soc.
, vol.14
, pp. 654
-
-
Kim, S.1
Lee, B.S.2
Park, J.H.3
-
33
-
-
84987300617
-
-
a) V. Speziale, J. Roussel, A. Lattes, J. Heterocycl. Chem. 1974, 11, 771-775;
-
(1974)
J. Heterocycl. Chem.
, vol.11
, pp. 771-775
-
-
Speziale, V.1
Roussel, J.2
Lattes, A.3
-
34
-
-
0344568923
-
-
b) A. I. Kohdair, A. M. A. Abdel-Wahab, H. S. El-Kashef, K. M. Hassan, A. M. El-Khawaga, M. F. El-Zohary, Rev. Roum. Chim. 1983, 28, 921-931;
-
(1983)
Rev. Roum. Chim.
, vol.28
, pp. 921-931
-
-
Kohdair, A.I.1
Abdel-Wahab, A.M.A.2
El-Kashef, H.S.3
Hassan, K.M.4
El-Khawaga, A.M.5
El-Zohary, M.F.6
-
35
-
-
84890838736
-
-
Chem. Abstr. 1984, 100, 209113s;
-
(1984)
Chem. Abstr.
, vol.100
-
-
-
38
-
-
0000012312
-
-
(Ed. J. D. Morrison), Academic Press, New York
-
b) P. A. Bartlett, in Asymmetric Synthesis, Vol. 3 (Ed. J. D. Morrison), Academic Press, New York, 1984, pp. 411-453.
-
(1984)
Asymmetric Synthesis
, vol.3
, pp. 411-453
-
-
Bartlett, P.A.1
-
40
-
-
84890823837
-
-
note
-
o = 1.8 M 1.2 equiv) with AiBN as initiator yielded the product 14a in (96±1)% yield (cis:trans=89:11). In the same manner 14a (cis:trans = 30:70) was obtained from 2-iodomethyl-5- phenyltetrahydrofuran in quantitative yield (three individual runs). Each of the probes investigated showed no signals of the alcohol 4a in the gas chromatogram of the crude reaction mixture, thus ruling out a radical-induced ether cleavage 3a → 2a under the chosen reaction conditions.
-
-
-
-
42
-
-
84890825703
-
-
note
-
ref
-
-
-
-
43
-
-
84890853720
-
-
note
-
The driving force of the rearrangements 6a,h → 7a,h obviously is the formation of the heteroaromatic pyridine N-oxides 7a,h from the cross-conjugated cyclic olefins 6a,h.
-
-
-
-
45
-
-
0343156983
-
-
a) D. A. Avila, J. Lusztyk, K. U. Ingold, J. Am. Chem. Soc. 1992, 114, 6576-6577;
-
(1992)
J. Am. Chem. Soc.
, vol.114
, pp. 6576-6577
-
-
Avila, D.A.1
Lusztyk, J.2
Ingold, K.U.3
-
46
-
-
0001475344
-
-
b) D. V. Avila, K. U. Ingold, A. A. Dinardo, F. Zerbetto, M. Z. Zgierski, J. Lusztyk, ibid. 1995, 117, 2711-2718.
-
(1995)
J. Am. Chem. Soc.
, vol.117
, pp. 2711-2718
-
-
Avila, D.V.1
Ingold, K.U.2
Dinardo, A.A.3
Zerbetto, F.4
Zgierski, M.Z.5
Lusztyk, J.6
-
47
-
-
33845375140
-
-
The lowest energy geometry of the transition state of the 5-exo-trig reaction of 2a (Fig. 1) is taken from molecular modeling studies, which use restraints for the transition-state parameters (bond lengths and angles) of the reacting centers obtained from ab initio calculations (UHF/3-21G) on the addition of the methoxy radical to 1-propene
-
The lowest energy geometry of the transition state of the 5-exo-trig reaction of 2a (Fig. 1) is taken from molecular modeling studies, which use restraints for the transition-state parameters (bond lengths and angles) of the reacting centers obtained from ab initio calculations (UHF/3-21G) on the addition of the methoxy radical to 1-propene: K. N. Houk, M. N. Paddon-Row, D. C. Spellmeyer, N. G. Rondan, S. Nagase, J. Org. Chem. 1986, 51, 2874- 2879.
-
(1986)
J. Org. Chem.
, vol.51
, pp. 2874-2879
-
-
Houk, K.N.1
Paddon-Row, M.N.2
Spellmeyer, D.C.3
Rondan, N.G.4
Nagase, S.5
-
48
-
-
0842341771
-
-
The geometry of the modeled transition structure was optimized using the implemented AM1/UHF wavefunction of the HyperChem® software package on a IBM-compatible Pentium machine. HyperChem® is available from Hypercube, 419 Phillip St. Waterloo, Ontario, Canada, N2L3X2. The distance between the proximal ortho hydrogen (b-H) and the pseudoequatorial hydrogen atom on C-2 in this picture is 2.43 Å
-
The geometry of the modeled transition structure was optimized using the implemented AM1/UHF wavefunction (M. J. S. Dewar, E. G. Zoebisch, E. F. Healy, J. J. P. Stewart, J. Am. Chem. Soc. 1985, 107, 3902-3909) of the HyperChem® software package on a IBM-compatible Pentium machine. HyperChem® is available from Hypercube, 419 Phillip St. Waterloo, Ontario, Canada, N2L3X2. The distance between the proximal ortho hydrogen (b-H) and the pseudoequatorial hydrogen atom on C-2 in this picture is 2.43 Å.
-
(1985)
J. Am. Chem. Soc.
, vol.107
, pp. 3902-3909
-
-
Dewar, M.J.S.1
Zoebisch, E.G.2
Healy, E.F.3
Stewart, J.J.P.4
-
50
-
-
0004055425
-
-
2nd ed., Pergamon Press, Oxford
-
D. D. Perrin, W. L. F. Armarego, D. R. Perrin, Purification of Laboratory Chemicals, 2nd ed., Pergamon Press, Oxford, 1980.
-
(1980)
Purification of Laboratory Chemicals
-
-
Perrin, D.D.1
Armarego, W.L.F.2
Perrin, D.R.3
-
51
-
-
0027732034
-
-
a) V. H. Rawal, S. P. Singh, C. Dufour, C. Michoud, J. Org. Chem. 1993, 58, 7718-7727;
-
(1993)
J. Org. Chem.
, vol.58
, pp. 7718-7727
-
-
Rawal, V.H.1
Singh, S.P.2
Dufour, C.3
Michoud, C.4
-
54
-
-
0025852374
-
-
Y. Taura, M. Tanaka, X.-M. Wu, K. Funakoshi, K. Sakai, Tetrahedron 1991, 47, 4879-4888.
-
(1991)
Tetrahedron
, vol.47
, pp. 4879-4888
-
-
Taura, Y.1
Tanaka, M.2
Wu, X.-M.3
Funakoshi, K.4
Sakai, K.5
-
56
-
-
0007021704
-
-
a) M. S. Schechter, N. Green, F. B. LaForge, J. Am. Chem. Soc. 1949, 71, 3165.
-
(1949)
J. Am. Chem. Soc.
, vol.71
, pp. 3165
-
-
Schechter, M.S.1
Green, N.2
LaForge, F.B.3
-
57
-
-
33749287145
-
-
b) M. S. Schechter, N. Green, F. B. LaForge, J. Am. Chem. Soc. 1952, 74, 4902.
-
(1952)
J. Am. Chem. Soc.
, vol.74
, pp. 4902
-
-
Schechter, M.S.1
Green, N.2
LaForge, F.B.3
|