Synthesis of functionalized and unfunctionalized olefins via cross and ring-closing metathesis
公开/公告号：
US6794534 B2
关键词：
alkylation, arylation, dealkylation, dearylation, C‐acylation, olefination ring closure reactions catalysis, phase‐transfer catalysis oxo compounds (acyclic compounds
被引量：
摘要：
The invention is directed to the cross-metathesis and ring-closing metathesis reactions between geminal disubstituted olefins and terminal olefins, wherein the reaction employs a Ruthenium or Osmium metal carbene complex. Specifically, the invention relates to the synthesis of &agr;-functionalized or unfunctionalized olefins via intermolecular cross-metathesis and intramolecular ring-closing metathesis using a ruthenium alkylidene complex. The catalysts preferably used in the invention are of the general formula
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