Effect of A(1,3)-cis strain on the asymmetric epoxidation of (E)- and (Z)-6,6-diethoxy-3-hexen-2-ols and 4-methyl-6,6-diethoxy-3-hexen-2-ols
摘要:
The effect of A((1,3))-cis strain on the diastereoselectivity of epoxidation of (E)-and (Z)-6,6-diethoxy-3-hexen-2-ols and 4-methyl-6,6-diethoxy-3-hexen-2-ols is analyzed, with some empiric observations provided. Increased A((1,3))-cis strain results in increased amounts of racemic threo-epoxy alcohols, while high ee's are found for the erythro-epoxy alcohols. (C) 1998 Elsevier Science Ltd. All rights reserved.
Effect of A(1,3)-cis strain on the asymmetric epoxidation of (E)- and (Z)-6,6-diethoxy-3-hexen-2-ols and 4-methyl-6,6-diethoxy-3-hexen-2-ols
摘要:
The effect of A((1,3))-cis strain on the diastereoselectivity of epoxidation of (E)-and (Z)-6,6-diethoxy-3-hexen-2-ols and 4-methyl-6,6-diethoxy-3-hexen-2-ols is analyzed, with some empiric observations provided. Increased A((1,3))-cis strain results in increased amounts of racemic threo-epoxy alcohols, while high ee's are found for the erythro-epoxy alcohols. (C) 1998 Elsevier Science Ltd. All rights reserved.