Cycloadditions to ketene-S,N-acetals. New syntheses of benzo(b)- and naphtho(1,2-b)furans, 1-benz- and naphth(1,2-b)oxepins, and benz(b)furan-2-ones.

Hiroki Takahata,Akira Anazawa,Keiko Moriyama,Takao Yamazaki

Cycloadditions to ketene-S,N-acetals. New syntheses of benzo(b)- and naphtho(1,2-b)furans, 1-benz- and naphth(1,2-b)oxepins, and benz(b)furan-2-ones.

1986

Hiroki Takahata
Akira Anazawa
Keiko Moriyama
Takao Yamazaki

Annulation of ketene-S,N-acetal with 1,4-quinones gave benzo [b]- and naphtho[1,2-b]furans which were converted to 1-benz- and naphth[1,2-b]oxepins and benzo[b]furan-2-ones.

Keywords:

Ketene
Quinone
Bicyclic molecule
Furan
Cycloaddition
Annulation
Organic chemistry
Chemistry
Phenols

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