聚—r—氨丙基硅氧烷的钯络合物对丁炔二醇的催化加氢研究

CATALYTIC HYDROGENATION OF BUTYNEDIOL BY PALLADIUM COMPLEXES OF POLY—r—AMINO —PROPYLSILOXANE

在加压条件下考察了聚—ｒ—氨丙基硅氧烷钯络合物催化剂（ＰＣＡ）对丁炔二醇和烯丙醇的催化氢化反应。指出了题示ＰＣＡ在适当提高初压时，对丁炔二醇及烯丙醇有很高的催化活性。得出了催化剂的Ｎ／Ｐｄ摩尔比与以底物为基准的质量分数表示的催化剂使用浓度ｃ之间的定量关系。实验表明，其比值Ｎ／Ｐｄｃ，趋近于一个定值３５时，可以得到转化率高。

A polymer palladium complex, which is prepared by palladium (Ⅱ) chloride and poly—r—aminopropylsiloxane supportted on white carbon, is very active for hydrogenation of 2—butyne—1.4—diol and ally1 alcohol at room temperature under 3.0～5.0 MPa hydrogen pressure. A quantitative relation between the mole ratio of N/Pd and concentration of catalyst used c expresed as GS=N/Pd c is obtained. The test shows a good result, including conversion rate、 selectivity and high activity when GS is about 35.