Cu-MEDIATED ANNULATION FOR THE EFFECTIVE SYNTHESIS OF 3-SUBSTITUTED PHTHALIDES
申请人:Council of Scientific & Industrial Research
公开号:US20150045564A1
公开(公告)日:2015-02-12
The present invention disclosed herein is a novel commercially feasible, one pot synthesis of library of 3-substituted phthalides of formula I via CuCN mediated oxidative cyclization in high yield. Formula I
A concise, convergent total synthesis of monocerin
作者:John H. Cassidy、Christopher N. Farthing、Stephen P. Marsden、Anders Pedersen、Mark Slater、Geoffrey Stemp
DOI:10.1039/b612256f
日期:——
A concise and convergent eight-step synthesis of the antifungal metabolite monocerin 1 is reported. The key step involves an allylsilane metathesis/aldehyde condensation sequence to establish the core 2,3,5-trisubstituted tetrahydrofuran. End-game approaches based around intramolecular Heck chemistry revealed an interesting example of formal 6-endo cyclisation, the origin of which was probed using
Palladium mediated domino heck redox cyclization of aromatic homoallylic alcohols to methylindanones
作者:Vivek K. Mishra、Martin E. Maier、Manish Tiwari
DOI:10.1007/s13738-024-03053-3
日期:2024.8
3-Methyl indanones are key synthetic building blocks for a variety of natural and useful synthetic compounds. Their synthesis is exceedingly difficult. Herein, we described a palladium (II) mediated intramolecular one-pot redox-relay cyclization of aromatic homoallylic alcohols to cyclic keto compounds. This catalytic system enabled direct conversion of homoallylic alcohols to corresponding indanones (3
[EN] Cu-MEDIATED ANNULATION FOR THE EFFECTIVE SYNTHESIS OF 3-SUBSTITUTED PHTHALIDES<br/>[FR] ANNÉLATION MÉDIÉE PAR LE CUIVRE POUR LA SYNTHÈSE EFFICACE DE PHTALIDES SUBSTITUÉS EN POSITION 3