Syntheses of 4-phenylcoumarins containing a dimethylpyran ring.

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概要

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• Three isomers of 2<I>H</I>,8<I>H</I>-benzo[1,2-<I>b</I>: 3,4-<I>b</I>′]dipyran and 2<I>H</I>,8<I>H</I>-benzo[1,2-<I>b</I>: 5,4-<I>b</I>′]dipyran, were synthesized by dehydrogenation of the dihydrobenzodipyran derivatives using DDQ or NBS and by dehydration of the secondary alcohol prepared by reduction of 4-phenylcoumarin derivatives bearing dihydropyranone ring with sodium borohydride.

• 公益社団法人 日本化学会の論文

著者

• Matsui Takanao

  Department Of Applied Chemistry Faculty Of Engineering Miyazaki University

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• Syntheses of 4-phenylcoumarins containing a dimethylpyran ring.

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