芳基取代的锍甜菜碱：制备及其在醛的环氧化反应中的应用。
Aryl-substituted sulfonium betaines: preparation and use in the epoxidation of aldehydes.
作者信息
Forbes David C, Amin Sejal R, Bean Christie J, Standen Michael C
机构信息
Department of Chemistry, University of South Alabama, Mobile, Alabama 36688, USA.
出版信息
J Org Chem. 2006 Oct 13;71(21):8287-90. doi: 10.1021/jo061370u.
PMID:17025328
Abstract
Thermally induced decarboxylation of carboxymethylsulfonium betaines results in formation of the corresponding sulfur ylides in situ. Decarboxylation rates for a range of arylcarboxymethylsulfonium betaine salts have been determined using NMR spectroscopy, and the efficiency of ylide generation and trapping has been evaluated via methylidene transfer to a range of aldehydes to form epoxides.
摘要
羧甲基锍甜菜碱的热诱导脱羧反应会原位生成相应的硫叶立德。已使用核磁共振光谱法测定了一系列芳基羧甲基锍甜菜碱盐的脱羧速率，并通过亚甲基转移至一系列醛以形成环氧化物来评估硫叶立德生成和捕获的效率。
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