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4
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0343531071
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Personal communication to E.J.C. from the PPH Cure Foundation, Washington, DC, a non-profit organization
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Personal communication to E.J.C. from the PPH Cure Foundation, Washington, DC, a non-profit organization.
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-
8
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-
0001513454
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-
For other oxazaborolidine-catalyzed reductions of alkynyl ketones see: (a)
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For other oxazaborolidine-catalyzed reductions of alkynyl ketones see: (a) Parker, K.A.; Ledeboer, M.W. J. Org. Chem. 1996, 61, 3214.
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(1996)
J. Org. Chem.
, vol.61
, pp. 3214
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-
Parker, K.A.1
Ledeboer, M.W.2
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9
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0000846718
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(b)
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(b) Bach, J.; Berenguer, R.; Garcia, J.; Loscertales, T.; Vilarrasa, J. J. Org. Chem. 1996, 61, 9021.
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(1996)
J. Org. Chem.
, vol.61
, pp. 9021
-
-
Bach, J.1
Berenguer, R.2
Garcia, J.3
Loscertales, T.4
Vilarrasa, J.5
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10
-
-
0001095367
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-
(c)
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(c) Rao, M.N.; McGuigan, M.A.; Zhang, X.; Shaked, Z.; Kinney, W.A.; Bulliard, M.; Laboue, B.; Lee, N.E. J. Org. Chem. 1997, 62, 4541.
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(1997)
J. Org. Chem.
, vol.62
, pp. 4541
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-
Rao, M.N.1
McGuigan, M.A.2
Zhang, X.3
Shaked, Z.4
Kinney, W.A.5
Bulliard, M.6
Laboue, B.7
Lee, N.E.8
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12
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0000808892
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3). See
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3). See: Falck, J.R.; Bhatt, R.K.; Ye, J. J. Am. Chem. Soc. 1995, 117, 5973.
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(1995)
J. Am. Chem. Soc.
, vol.117
, pp. 5973
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-
Falck, J.R.1
Bhatt, R.K.2
Ye, J.3
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13
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0030570857
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For other examples of oxazaborolidine-catecholborane reductions that give improved enantioselectivity at higher temperatures see: (a)
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For other examples of oxazaborolidine-catecholborane reductions that give improved enantioselectivity at higher temperatures see: (a) Corey, E.J.; Helal, C.J. Tetrahedron Lett. 1996, 37, 5675.
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(1996)
Tetrahedron Lett.
, vol.37
, pp. 5675
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-
Corey, E.J.1
Helal, C.J.2
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14
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0343966933
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(b) reference 8
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(b) reference 8.
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-
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15
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0343531056
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Available from the Aldrich Chemical Company
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Available from the Aldrich Chemical Company.
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17
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0343991943
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The volatility of iodide 11 and alkynyl ester 12 required solvent removal at 0 °C/50 mmHg
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The volatility of iodide 11 and alkynyl ester 12 required solvent removal at 0 °C/50 mmHg.
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19
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0000904191
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(a) For a different preparation of this zinc homoenolate see
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(a) For a different preparation of this zinc homoenolate see: Nakamura, E.; Sekiya, K.; Kuwajima, I. Tetrahedron Lett. 1987, 28, 337.
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(1987)
Tetrahedron Lett.
, vol.28
, pp. 337
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Nakamura, E.1
Sekiya, K.2
Kuwajima, I.3
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20
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4243489506
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(b) For an excellent review on the preparation and reactions of organozinc reagents, see
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(b) For an excellent review on the preparation and reactions of organozinc reagents, see: Knochel, P.; Singer, R.D. Chem. Rev. 1993, 93, 2117.
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(1993)
Chem. Rev.
, vol.93
, pp. 2117
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Knochel, P.1
Singer, R.D.2
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22
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0000064055
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This coupling is based upon that reported by
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This coupling is based upon that reported by: Yeh, M.C.P.; Knochel, P. Tetrahedron Lett. 1989, 30, 4799.
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(1989)
Tetrahedron Lett.
, vol.30
, pp. 4799
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Yeh, M.C.P.1
Knochel, P.2
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24
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33845556993
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Triisopropylsilylacetylene was prepared via the reaction between lithium acetylide and triisopropylsilyl chloride. See
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Triisopropylsilylacetylene was prepared via the reaction between lithium acetylide and triisopropylsilyl chloride. See: Bottaro, J.C.; Hanson, R.N.; Seitz, D.E. J. Org. Chem. 1981, 46, 5221.
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(1981)
J. Org. Chem.
, vol.46
, pp. 5221
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Bottaro, J.C.1
Hanson, R.N.2
Seitz, D.E.3
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25
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0342685613
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Note
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t: 29.8 min, major; 35.6 min, minor).
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26
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0342685611
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The relative stereochemistry of the reduction of ketone 14 to alcohol 2 was assigned by analogy with the reduction of ketone 6 to alcohol 8
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The relative stereochemistry of the reduction of ketone 14 to alcohol 2 was assigned by analogy with the reduction of ketone 6 to alcohol 8.
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27
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0343119887
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This research was supported by grants from the National Institutes of Health and the National Science Foundation
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This research was supported by grants from the National Institutes of Health and the National Science Foundation.
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