Solvolysis of allylic prostaglandin mesylates: moderate 1,3-syn-stereoselectivity
作者:M. A. Lapitskaya、P. M. Demin、G. V. Zatonsky、K. K. Pivnitsky
DOI:10.1007/s11172-005-0163-1
日期:2004.11
The stereochemistry of SN2 and SN2′ substitutions of the allylic mesyloxy group in mesylates of prostaglandin allylic epimeric 13- and 15-alcohols under the action of various nucleophiles (H2O, MeOH, AcOH, LiBr) was studied. The substitution accompanied by rearrangement occurs with moderate (1.4–1.6 : 1) syn-stereoselectivity with respect to the configuration of the mesyloxy group, which increases
研究了在各种亲核试剂(H2O、MeOH、AcOH、LiBr)作用下前列腺素烯丙基差向异构 13- 和 15- 醇的甲磺酸酯中烯丙基甲磺酰氧基的 SN2 和 SN2' 取代的立体化学。伴随着重排的取代相对于甲磺酰氧基的构型具有中等 (1.4-1.6:1) 的顺式立体选择性,随着温度的降低而增加,并且仅略微取决于亲核试剂的性质。