Studies on the syntheses of heterocyclic compounds. Part DCXII. A simple synthesis of benzopyran and dibenzopyran derivatives

Autor:	Nagatoshi Wagatsuma, Haruhide Ishimaru, Seiji Haga, Kazuo Kigasawa, Tetsuji Kametani, O. Kusama, Mineharu Hiiragi
Rok vydání:	1975
Předmět:	chemistry.chemical_compound chemistry Simple (abstract algebra) Organic Chemistry Cyclohexanol Organic chemistry Benzopyran
Zdroj:	Journal of Heterocyclic Chemistry. 12:851-854
ISSN:	1943-5193 0022-152X
DOI:	10.1002/jhet.5570120508
Popis:	trans-2-(3-Hydroxyphenyl)cyclohexanol (1b) was converted into 6-methyl-6-phenylbenzopyran (11a) and 6-spirocyclohexanobenzopyran (11b) by phenolic cyclization or under acidic condition. This type of reaction was also applied to the synthesis of 3,4-dihydro-6-methoxy-1-methoxycarbonyl-1-methyl-1H-2-benzopyran (IV).
Databáze:	OpenAIRE
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