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2-Aryl-2-methyl benzopyrans

Rao PS, Reddy KV, Ashok D (2000) A facile synthesis of 7-(substituted aryl)-2-benzoyl-3-methyl-5H-furo[3,2-g] [l]benzopyran-5-ones and their antifeedant activity. Indian J Chem 39B 557... [Pg.302]

Treatment of 4-(l-aryl-l-hydroxymethyl)-2,2-dimethylchromenes with PBrs at 0 °C produces the 4-arylidenechroman e.g. 13 <05TL8849>. The cannabinoid ring system has been obtained from 27f-[l]benzopyran-3-carboxaldehydes by conversion to the 3-vinyl derivative and a subsequent thermal DA reaction with methyl vinyl ketone <0581888>. [Pg.382]

See other pages where 2-Aryl-2-methyl benzopyrans is mentioned: [Pg.137]    [Pg.26]    [Pg.305]    [Pg.274]   
See also in sourсe #XX -- [ Pg.262 , Pg.274 , Pg.291 ]



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3-Aryl-5-methyl

Benzopyran

Benzopyrane

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