Silver Oxide를 이용한 1,2-벤조티아진 유도체의 비대칭 중합체 합성 및 결정 구조
Synthesis and Crystal Structure of Asymmetric Dimer of 1,2-Benzothiazine Derivatives Using Silver Oxide
대한화학회지 1998년 42권 6호 p.657 ~ 663
박명숙,
소속 상세정보
박명숙 ( Park Myung-Sook ) - Duksung Women’s University College of Pharmacy
KMID : 1059519980420060657
Abstract
새로운 비대칭 중합체인 7,7'-substituted (or H)-4-oxo-2,2'-dialkyl-1,2',2,2'-dibenzothiazine-3,3'-dicarboxylic acid methyl ester-1,1,1',1'-tetraoxide 3,4'-yl ethers 2a-d를 silver oxide(Ag2O)를 이용한 산화적인 중합반응에 의해 7-substituted (or H)-4-hydroxy-2-alkyl-1,2-benzothiazine-3-carboxylic acid methyl ester 1,1-dioxide 1a-d로부터 합성하였다. 4-Oxo-e,e'-dialkyl-1,1',2,2'-dibenzothiazine-3,3'-dicarboxylic acid methyl ester-1,1,1',1'-tetraoxide 3,4'-yl ether 2c의 구조를 X-ray 결정 구조 분석에 의해 확인하였다.
New asymmetric dimer, 7,7'-substituted (or H)-4-oxo-2,2'- dialkyl-l,l',2,2'-dibenzothiazine-3,3'dicarboxylic acid methyl ester-1,1,1',1'-tetraoxide 3,4'-yl ethers 2a-d were synthesized through the oxidative dimerization of 7-substituted (or H)-4-hydroxy-2-alkyl-1,2-benzothiazine-3-carboxylic acid methyl ester 1,1-dioxides la-d using silver oxide(Ag2O). 4-Oxo-2,2'-dialkyl-1,1'2,2'-dibenzothiazine-3,3'-dicarboxylic acid methyl ester-1,1,1',l'-tetraoxide 3,4'-yl ether 2c was identified by X-ray crystal structure determination.
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