New heterocycles:4-methyl-2h-pyrano6,5-fcycloalka-2,1-b-2h-chromen-2-ones

Qian Zhang; Ying Chen; Yi XiaZhengyu YangPeng Xia

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New heterocycles:4-methyl-2h-pyrano6,5-fcycloalka-2,1-b-2h-chromen-2-ones

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摘要

A synthesis of the new heterocycles,4-methyl-2H-pyrano6,5-fcycloalka2,l-b2H-chromen-2-ones (3) was described,via the unexpected intermediates 2-chloro-l-chloroethenylidenecycloalkanes (6) from the reaction of 1-ethynylcycloalkanols with thionyl chloride.The mechanism of some steps was discussed.

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来源
《Heterocycles: An International Journal for Reviews and Communications in Heterocyclic Chemistry》 |2004年第7期|1637-1643|共7页
作者
Qian Zhang; Ying Chen; Yi XiaZhengyu YangPeng Xia;
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Department of Medicinal Chemistry,School of Pharmacy,Fudan University,Shanghai 200032,China;

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正文语种英语
中图分类杂环化合物;
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New heterocycles:4-methyl-2h-pyrano6,5-fcycloalka-2,1-b-2h-chromen-2-ones

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