US7872160: Single pot process for the regioselective synthesis of neolignan fr+B53amework asarones

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The invention provides a single pot process for the regioselective synthesis of neolignane framework [3(R)-Ethyl-2(S)-methyl-3-(2'',4'',5''-trimethoxyphenyl)-1-(2',4',5'-trim- ethoxyphenyl) propane from toxic ?-isomer rich asarone using montmorillonite acidic clay by employing microwave organic reaction enhancement (MORE) chemistry. This may be useful as a versatile synthetic protocol for the synthesis of a large number of lignan and neolignane frameworks.

Patent No:: US7872160
Application No:: 12/290580
Filing Date:: 31-10-2008
Issue Date:: 18-01-2011
Applicant:: CSIR-Institute of Minerals and Materials Technology (CSIR-IMMT), Bhubaneswar
Inventor(s):: Uppuluri Venkata Mallavadhani; Akella Venkata Subramanya Sudhakar; Mahapatra Anita
IPC Classification:: C07C 41/06
Country:: United States of America

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