Bite Angle Effects in Hydroformylation Catalysis

• 来源期刊: 中国化学（英文版）
• 学科: 化学
• 年，卷（期）: 2001,（1）
• 页码范围: 1-8
• 页数: 8页
• 分类号: O6
• 语种: 英文

摘要

Recent advances in rhodium catalyzed hydroformylation using xanthene-based ligands will be reviewed.The calculated natural bite angles of the ligands discussed are in the range 100-123℃ While the general trend is clear-higher 1:b ratios at wider angles, small changes in the bite angle do not exhibit a regular effect on the selectivity of the reaction.The same is true for the rate of CO dissociation;the larger the rate of the CO dissociation, the larger the rate of hydroformylation, but for small changes the effects do not comply with this rule.