STEREOSELECTIVE SYNTHESIS OF ALCOHOLS .22. E/Z-SELECTIVITY ON ADDITION OF ALPHA-SUBSTITUTED ALLYLBORONATES TO ALDEHYDES

STEREOSELECTIVE SYNTHESIS OF ALCOHOLS .22. E/Z-SELECTIVITY ON ADDITION OF ALPHA-SUBSTITUTED ALLYLBORONATES TO ALDEHYDES
复制标题

DOI:
10.1002/cber.19861190324
复制
发表时间:
1986-03-01
期刊:
CHEMISCHE BERICHTE-RECUEIL
影响因子:
--
通讯作者:
LANDMANN, B
LANDMANN, B
中科院分区:
其他
文献类型:
--
作者:
HOFFMANN, RW;LANDMANN, B

文献摘要

被引文献

相似文献

<JATS:标题>摘要<JATS:P>α-杂取代烯丙基硼酸盐<JATS:BOLD>7。将<JATS:BOLD>7加到醛中得到<JATS:italic>E/Z-异构体高烯丙醇<JATS:BOLD>13和<JATS:BOLD>14。讨论了主要形成<JATS:italic>Z-异构体<Jats:BOLD>14的原因。以这种方式获得的<JATS:斜体Z-溴烯烃<JATS:BOLD>16和<JATS:BOLD>20用作δ-内酯<JATS:BOLD>21的链延伸或形成的起点。
< jats: title> Abstract< jats: p> α‐Heterosubstituted allylboronates< jats: bold> 7 are prepared. Addition of< jats: bold> 7 to aldehydes results in< jats: italic> E/Z‐isomeric homoallyl alcohols< jats: bold> 13 and< jats: bold> 14. The reasons for the predominant formation of the< jats: italic> Z‐isomer< jats: bold> 14 are discussed. The< jats: italic> Z‐bromo olefins< jats: bold> 16 and< jats: bold> 20 obtained in this way serve as starting point for chain extension or formation of δ‐lactones< jats: bold> 21.