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- W4221006399 endingPage "132722" @default.
- W4221006399 startingPage "132722" @default.
- W4221006399 abstract "Arylsulfenyl chlorides react with 2-(3-butenyl)quinazolinones in dichloromethane by the Ad E addition mechanism to give 2-(3-arylthio-4-chlorobutyl)quinazolin-4 (3 Н )-ones, which, when heated in the presence of sodium acetate, cyclize to 8-arylthio-6,7,8,9-tetrahydropyrido [2,1- b ]quinazolin-11-ones. Arylsulfenylation (selenylation) of 2-(3-butenyl)quinazolinones conducted in nitromethane in the presence of an equimolar amount of lithium perchlorate proceeds as an electrophilic 5- exo-trig cyclization involving either of the nitrogen atoms of the quinazolone nucleus to yield 1-arylthio (selenyl)methyl substituted angular-annulated 2,3-dihydropyrrolo [1,2- a ]quinazolin-5(1 H )-ones as major products and isomeric linear-annulated 2,3-dihydropyrrolo [2,1- b ]quinazolin-9(1 H )-one derivatives as minor products." @default.
- W4221006399 created "2022-04-03" @default.
- W4221006399 creator A5017684908 @default.
- W4221006399 creator A5022208600 @default.
- W4221006399 creator A5040107333 @default.
- W4221006399 creator A5050281727 @default.
- W4221006399 creator A5084108250 @default.
- W4221006399 date "2022-04-01" @default.
- W4221006399 modified "2023-10-16" @default.
- W4221006399 title "Chalcogenation/pyrrolo(pyrido)annulation of 2-(3-butenyl)quinazolin-4(3H)-ones by arylsulfenyl(selenyl) chlorides" @default.
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