ChemInform Abstract: Preparation of Functional Benzofurans, Benzothiophenes, and Indoles Using Ester, Thioester, and Amide via Intramolecular Wittig Reactions.

Abstract

The synthesis starts directly from salicylic aldehyde derivatives and succeeds in a one-pot procedure with comparable yields. During the reaction of amides, the N-acyl group is not transferred and, thus, substitution patterns with three different substituents are possible. -(SYU, S.-E.; LEE, Y.-T.; JANG, Y.-J.; LIN*, W.; Org. Lett. 13 (2011) 11, 2970-2973, http://dx.doi.org/10.1021/ol201062r ; Dep. Chem., Natl. Taiwan Norm. Univ., Taipei 116, Taiwan; Eng.) -H. Simon