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1. (WO2018220647) FURO[2,3-B]PYRAN-2-ONE COMPOUNDS AND PROCESS FOR PREPARATION THEREOF

Pub. No.:    WO/2018/220647    International Application No.:    PCT/IN2018/050345
Publication Date: Fri Dec 07 00:59:59 CET 2018 International Filing Date: Thu May 31 01:59:59 CEST 2018
IPC: C07D 493/04
Applicants: COUNCIL OF SCIENTIFIC & INDUSTRIAL RESEARCH
Inventors: KONTHAM, Ravindar
THORAT, Sagar Sudam
Title: FURO[2,3-B]PYRAN-2-ONE COMPOUNDS AND PROCESS FOR PREPARATION THEREOF
Abstract:
The present invention discloses a novel furo[2,3-b]pyran-2-one compound of formula (I) and a single step process for the preparation of furo[2,3-b]pyran-2-ones using Lewis acid-promoted cascade annulation of alkynols and α-ketoesters.