It was found that the effect of the various compositions of catalyst with CO/PR3 was held true, and agreeable accelerant was of great advantage to synthesize. The yield of 1,3-propanediol by One-step was better than that by two-step.

• 结果表明:Co/PR3催化剂体系适用于合成反应,适宜的促进剂有利于环氧乙烷羰基化制1,3 丙二醇,一步法优于二步法。