화학공학소재연구정보센터
학회 한국공업화학회
학술대회 2005년 봄 (05/13 ~ 05/14, 충남대학교)
권호 9권 1호
발표분야 정밀화학
제목 Stereoselective Synthesis of α,β-Substituted-β-mercaptocarboxylic Acid Derivatives: Asymmetric 1,4-Addition Using C2-Symmetric Pyrrolidine Derivatives (II)
초록 We have conducted the asymmetric conjugate addition to α,β-disubstituted unsaturated amides with trans-2,5-bis(methoxymethyl)pyrrolidine as a chiral auxiliary. Lewis acid catalyzed conjugate addition of thioacetic acid to tigloyl amide gives high asymmetric induction at the β-carbon as well as the α-carbon. Both the stereoselectivity and the yield were more than 95% for the major product shown below among the four possible isomers.
저자 김병현1, 김영규1, 이동활2, 이희봉1, 황제광1
소속 1서울대, 2동진세미켐
키워드 conjugate addition; chiral auxiliary; mercaptocarboxylic Acid
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