专利号:RU-2042678-C1 优先权日:1991-05-22 标 题:Method of synthesis of 6,7-dichloro-1,5-dihydroimidazo-[2,1-b]-quinazoline-2-(3h)-one, intermediates for their synthesis and a method of their synthesis
参考标题:Iron(III) Chloride-Catalyzed Decarboxylative-Deaminative Functionalization Of Phenylglycine: A Tandem Synthesis Of Quinazolinones And Benzimidazoles 作者:Manoranjan Kumar,Richa,Sushila Sharma,Vinod Bhatt,Neeraj Kumar |发布日期:2015.9.14 摘要:Present Reaction Conditions. In This Tandem Approach, Involvement Of Transfer Hydrogenation Of The Nitro Functionality With In Situ Generated Ammonia, Imination, Nitrile Hydration To Amide And Oxidative Cyclization Sequences Have Been Established. The Process Avoids The Use Of An External Hydrogen Source, Costly Catalysts As Well As The Isolation Of Amine And Amide Intermediates.