作者:Anastasiya G. Mal'kina、Ol'ga G. Volostnykh、Konstantin B. Petrushenko、Olesya A. Shemyakina、Valentina V. Nosyreva、Igor' A. Ushakov、Boris A. Trofimov
DOI:10.1016/j.tet.2013.03.007
日期:2013.5
Fluorescent 3(2H)-furanones, 4-cyano-2,2-dialky1-5-(1- or 2-)naphthy1-3(2H)-furanones, have been synthesized in 69-81% yield by a one-pot procedure, via the tandem reaction of tertiary cyanopropargylic alcohols with 1- and 2-naphthoic acids under mild transition-metal free conditions (Et3N, 20-25 degrees C for 48-192 h or 55-60 degrees C for 7-13 h, MeCN). The synthesized compounds fluoresce in the visible region (lambda(max)=419-431 nm), thus being prospective fluorescent biolabels. (C) 2013 Elsevier Ltd. All rights reserved.