引用本文:
Xing Ping LIU, Yu Lin LI, Xiao Tian LIANG. PREVOST-WOODWARD HYDROXYLATION OF 3, 5-CYCLO-24S-ETHYL-CHOLEST-22-EN-6-ONE[J]. Chinese Chemical Letters,
1990, 1(1): 25-26.
Citation: Xing Ping LIU, Yu Lin LI, Xiao Tian LIANG. PREVOST-WOODWARD HYDROXYLATION OF 3, 5-CYCLO-24S-ETHYL-CHOLEST-22-EN-6-ONE[J]. Chinese Chemical Letters, 1990, 1(1): 25-26.
Citation: Xing Ping LIU, Yu Lin LI, Xiao Tian LIANG. PREVOST-WOODWARD HYDROXYLATION OF 3, 5-CYCLO-24S-ETHYL-CHOLEST-22-EN-6-ONE[J]. Chinese Chemical Letters, 1990, 1(1): 25-26.
PREVOST-WOODWARD HYDROXYLATION OF 3, 5-CYCLO-24S-ETHYL-CHOLEST-22-EN-6-ONE
摘要:
Preost-Woodward hydroxylation of 2 gave the 22S, 23S-glycol(3), contrary to expectation.It is suggested that the formation of the two possibleiodonium ions(4a and 4b)are reversible, thus allowing the discriminatoryacetoxy group to follow the less hindered route, reacting with 4a virtuallyexclusively.
English
PREVOST-WOODWARD HYDROXYLATION OF 3, 5-CYCLO-24S-ETHYL-CHOLEST-22-EN-6-ONE
Abstract:
Preost-Woodward hydroxylation of 2 gave the 22S, 23S-glycol(3), contrary to expectation.It is suggested that the formation of the two possibleiodonium ions(4a and 4b)are reversible, thus allowing the discriminatoryacetoxy group to follow the less hindered route, reacting with 4a virtuallyexclusively.
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