Synthesis of CF3-substituted 1,2,3,4-tetrahydroisoquinolines and 1,2,3,6-tetrahydropyridines
作者:I. Yu. Chernyshov、V. V. Levin、A. D. Dilman、P. A. Belyakov、M. I. Struchkova、V. A. Tartakovsky
DOI:10.1007/s11172-010-0362-2
日期:2010.11
A three-step method for the preparation of CF3-substituted 1,2,3,4-tetrahydroisoquino-lines and 1,2,3,6-tetrahydropyridines has been suggested. The first step includes alkylation of isoquinoline or 4-methylpyridine at the nitrogen atom with the formation of salts, which are involved into the reaction with Grignard reagent or lithium triethylborohydride to give enamines. The enamines undergo nucleophilic
Nouvelle voie de synthese des 1,4-dihydroisoquinolein-3(2)-ones
作者:Said Kinate、Leila Chraïbi、Mohamed Soufiaoui
DOI:10.1016/s0040-4020(01)81992-x
日期:1992.1
cycloaddition of arylazides with 1,2-dihydro-isoquino line derivatives leads to new triazolinic adducts. The thermolysis of these latters followed to a hydrolysis conducts to 1,4-dihydroisoquinolin-3(2)-oes. The structure of the adducts and other products are assigned. The regio and diastereospecificity of the cycloaddition reaction are discussed on the basis of 1H NMR data.
芳基叠氮化物与1,2-二氢-异喹啉系列衍生物的1,3-偶极环加成反应会生成新的三唑啉加合物。这些后者的热解随后水解为1,4-二氢异喹啉-3(2 )-oes。确定了加合物和其他产品的结构。基于1 H NMR数据讨论了环加成反应的区域和非对映特异性。
Dipolar 1,3-cycloaddition of arylnitriloxides on 1,2-dihydroisoquinolines in a two-phase medium
The 1,3-dipolar cycloaddition of arylnitriloxides on 1,2-dihydroisoquinoline derivatives led to new 3-aryl, 3a-8,9,9a-tetrahydro[5,4-c]-isoxazoloisoquinoline adducts. The regioselectivity of the cycloaddition reactions is discussed on the basis of 1H and 13C NMR data.
1,2-二氢异喹啉衍生物上芳基腈的1,3-偶极环加成反应生成新的3-芳基,3a-8,9,9a-四氢[5,4- c ]-异恶唑异喹啉加合物。基于1 H和13 C NMR数据讨论了环加成反应的区域选择性。
Neue Tetrahydrobenzothiazolo-chinoline ihre Herstellung und Verwendung
申请人:BOEHRINGER INGELHEIM KG
公开号:EP0254179A2
公开(公告)日:1988-01-27
Es werden neue Verbindungen der allgemeinen Formel
(R₁, R₂ und R₃ sind in der Beschreibung definiert) beschrieben. Ihre Herstellung kann nach bekannten Verfahren erfolgen. Die neuen Verbindungen eigenen sich als Wirkstoffe für Arzneimittel.