S. Yamada, Azusa Iwaoka, Yukari Fujita
Nov 13, 2013
Citations
0
Influential Citations
23
Citations
Journal
Organic letters
Abstract
Tetrabutylammonium salts serve as templates for the Norrish-Yang cyclization of 2-benzyloxy-acylbenzenes to give trans-dihydrobenzofuranols in high stereoselectivities. The dual cation-π interactions between an ammonium with a benzene ring and a carbonyl group play a key role in changing the conformation of the substrate, which was supported by ab initio calculations.