SYNTHESIS OF 3,4-DIHYDROISOQUINOLINES BY CYCLIZATION OF 1-BROMO-2-(2-ISOCYANOALKYL)BENZENES WITH BUTYLLITHIUM

被引:3
|
作者
Kobayashi, Kazuhiro [1 ]
Matsumoto, Naoki [1 ]
Matsumoto, Kota [1 ]
机构
[1] Tottori Univ, Dept Chem & Biotechnol, Div Appl Chem, Grad Sch Engn, Tottori 6808552, Japan
关键词
3,4-Dihydroisoquinoline; Isocyanide; Aryllithium; Bromine-Lithium Exchange; Imidoyllithium; ASYMMETRIC-SYNTHESIS; ISOQUINOLINE; INHIBITORS; ALCOHOLS; ACID;
D O I
10.3987/COM-12-12620
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
A new and convenient method for the preparation of 3,3-disubstituted 3,4-dihydroisoquinolines has been developed. Thus, the reaction of 1-bromo-2-(bromomethyl)benzenes with (1-isocyano-1-lithioalkyl)benzenes, generated by the treatment of (1-isocyanoalkyl)benzenes with butyllithium, in THF at -78 degrees C gave the corresponding 1-(2-aryl-2-isocyanoalkyl)-2-bromobenzenes, which in turn were transformed into the desired products on treatment with butyllithium in THF at -78 degrees C.
引用
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页码:389 / 397
页数:9
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