METHOD FOR THE PREPARATION OF TERTIARY OLEFINS,申请号PH19380000174-传众专利搜索

METHOD FOR THE PREPARATION OF TERTIARY OLEFINS

申请公布号：PH16395(A)

申请号：PH19380000174

申请日期：1975.08.01

申请公布日期：1983.09.22

申请人：

SNAM PROGETTI

发明人：RENATO TESEI;VITORIO FATTORS;FRANCO BUONOMO

分类号：B01J21/00;B01J21/12;B01J31/00;B01J31/02;B01J37/02;C07B61/00;C07C1/00;C07C1/20;C07C11/02;C07C13/02;C07C67/00

主分类号：B01J21/00

摘要：A method is disclosed for preparing tertiary olefins starting from the corresponding tertiary ethers, the improvement consisting in contacting the ether with a catalyst composed by active alumina modified by reaction with a silicon compound selected among those corresponding to the general formula: <IMAGE> wherein X,Y,Z and W can be -R, -OR, -Cl, -Br, -SiH3 , -COOR, -SihnOm, R being hydrogen, an alkyl, cycloalkyl, aryl, aralkyl or alkyl-cycloalkyl radical of from 1 to 30 carbon atoms, n and m being integers comprised between 1 and 3. The advantages afforded by the invention are mainly the nearly quantitative yields and the high purity of the end products.