B(C6F5)3-Catalyzed tandem cyclization/hydrosilylation for the step-economical construction of 1,2,3,4-tetrahydroquinoxalines from readily available starting materials has been developed.
B(C6F5)3催化的串联环化/氢硅烷化反应,可从易得的起始物构建1,2,3,4-四氢喹啉。
Diaminomaleonitrile derivatives and processes for preparing the same
申请人:Sagami Chemical Research Center
公开号:US04017533A1
公开(公告)日:1977-04-12
N-.alpha.-Cyanoalkyl compounds of diaminomaleonitrile represented by the formula (I) ##STR1## wherein R represents a straight or branched chain alkyl group having 1 to 4 carbon atoms or a phenyl group useful for producing dihydropyrazine compounds; iminonitrile compounds of diaminomaleonitrile useful as antimicrobial agents and intermediates, represented by the formula (II) ##STR2## wherein R is as defined above; and processes for preparing the same.