[EN] CHROMAN-4-ONE DERIVATIVES FOR THE TREATMENT AND PROPHYLAXIS OF HEPATITIS B VIRUS INFECTION [FR] DÉRIVÉS DE CHROMAN-4-ONE POUR LE TRAITEMENT ET LA PROPHYLAXIE D'UNE INFECTION PAR LE VIRUS DE L'HÉPATITE B
Regioselective formylation of 1,3-disubstituted benzenes through in situ lithiation
作者:Le Wang、Yan Wang、Fangxu Guo、Yue Zheng、Pinaki S. Bhadury、Zhihua Sun
DOI:10.1016/j.tetlet.2013.08.098
日期:2013.11
A facile method of regioselective formylation of disubstituted benzene via in situ deprotonation/metalation using n-BuLi/TMEDA/DIPA has been developed. Effect of different electron withdrawing and electron donating substituents in 1,3-interrelated aromatic system was studied; the metalation mostly occurred at the 2-position to afford the desired products in high yields. (c) 2013 Elsevier Ltd. All rights reserved.
CHROMAN-4-ONE DERIVATIVES FOR THE TREATMENT AND PROPHYLAXIS OF HEPATITIS B VIRUS INFECTION