A Note on Stereochemical Observations of the Deprotonation of Ethyl 2-Alkenoates
A Note on Stereochemical Observations of the Deprotonation of Ethyl 2-Alkenoates
复制标题
2-烯酸乙酯去质子化立体化学观察的注记
DOI:
10.1002/hlca.19810640407
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发表时间:
1981
影响因子:
1.8
通讯作者:
E. Krebs
中科院分区:
文献类型:
--
作者:
E. Krebs
Deprotonation of ethyl (E)-2-alkenoates 1, 3 and 4 yields after protonation the double bond migrated (3 Z)-isomers 5, 7 and 9 as major products. In contrast, deprotonation and reprotonation of ethyl (Z)-2-pentenoate (2) gives the (3 E)-isomer 6 exclusively. These findings are explained by reaction paths starting from different ester conformations.