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5. Toward Total Synthesis of Yohimbine and Reserpine Alkaloids; Part 1.An Improved Synthesis of cis-5,

Toward Total Synthesis of Yohimbine and Reserpine Alkaloids; Part 1.An Improved Synthesis of cis-5,

来源 :中国化学快报（英文版） | 被引量 : 0次 | 上传用户：lan2009908

【摘 要】

：

An improved and high-yielding synthesis of cis-5, 8-dihydroxy-1, 4, 5, 8, 9, 10- hexa-hydronaphthalene-1,8-lactone 7, an intermediate for (-)-reserpine 1 is pre

【作 者】

：

Yong Ye LI Mei XU Fen Er CHEN 

【机 构】

：

Department of Chemistry

【出 处】

：

中国化学快报（英文版）

【发表日期】

：

2004年期

【关键词】

：

(-)-Reserpine lactone zinc borohydride reduction synthesis 

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论文部分内容阅读

An improved and high-yielding synthesis of cis-5, 8-dihydroxy-1, 4, 5, 8, 9, 10- hexa-hydronaphthalene-1,8-lactone 7, an intermediate for (-)-reserpine 1 is presented. The conjugated ketone 5 was regioselectively reduced to afford lactone 7 with zinc borohydride formed in situ from KBH4 and ZnCl2 in THF.

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