Why are benzimidazoles efficiently acylated with esters? Identification of a tetrahedral hemiacetal alkoxide intermediate
作者:Ken-ichi Asakawa、J.J. Dannenberg、Kenneth J. Fitch、Stan S. Hall、Chie Kadowaki、Sandor Karady、Satoshi Kii、Kenji Maeda、Benjamin F. Marcune、Toshiaki Mase、Ross A. Miller、Robert A. Reamer、David M. Tschaen
DOI:10.1016/j.tetlet.2005.05.068
日期:2005.7
2-Lithio benzimidazoles were acylated with esters, lactones, and lactams. The tetrahedral hemiacetal intermediates responsible for the efficient conversion were characterized by low temperature NMR. (c) 2005 Published by Elsevier Ltd.
BALASUBRAMANIYAN, V.;BALASUBRAMANIYAN, P.;PATIL, S. V., INDIAN J. CHEM. B , 29,(1990) N, C. 124-127
作者:BALASUBRAMANIYAN, V.、BALASUBRAMANIYAN, P.、PATIL, S. V.
DOI:——
日期:——
Balasubramaniyan; Balasubramaniyan; Patil, Indian Journal of Chemistry - Section B Organic and Medicinal Chemistry, 1990, vol. 29, # 2, p. 124 - 127