相似化合物
13058-77-0 54920-78-4 93493-69-7专利信息
专利号:US-9505733-B2
优先权日:2011-11-18
标题:Single step enantioselective process for the preparation of 3-substituted chiral phthalides
发明人:REDDY REKULA SANTOSH; NAGA CHITHANYA KIRAN INDUKURU; ARUMUGAM SUDALAI
权利人:COUNCIL SCIENT IND RES
摘要:The present invention discloses single step, highly enantioselective catalytic oxidative cyclization process for the synthesis of 3-substituted chiral phthalides. In particular, the invention discloses asymmetric synthesis of chiral phthalides via synergetic nitrile accelerated oxidative cyclization of o-cyano substituted aryl alkenes in high yield and enantiomeric excess (ee) in short reaction time. Also, disclosed herein is “one-potâ€? asymmetric synthesis of biologically important natural compounds having 3-substituted chiral phthalide structural framework in the molecule.