工业性氯化法苯磺隆前置中间体-氯嗪的合成 关键词： 乙腈; 氯化; 关环; 氯嗪; 三嗪[gap=530]Key words： acetonitrile; chlorination; cyclization; chloro-triazine; triazine
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然后再与A环合成子偶联、关环、脱保护完成目标产物的全合成。
Then coupling with A ring synthon, closing, deprotection, the aim product was synthesized finally.
关环转换反应是形成碳碳双键的重要反应之一，即双烯化合物在金属碳烯催化下关环得到环烯类化合物。
Ring closing metathesis (RCM) of dienes to cycloalkene provides an important tool for C-C double bond formation catalyzed by metal carbene.
本文概述了关环转换反应所用催化剂体系及其在天然产物合成中的应用，内容涉及到碳环及含氧、含氮杂环天然产物的合成。
This paper reviews the catalyst system in RCM reaction and RCM application in the synthesis of natural products including carbon ring, oxygen heterocycles and nitrogen heterocycles, etc.
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