It was found that photopromoted carbonylation of olefins and CO 2 under ambient conditions could be catalyzed by Co(OAc) 2, Co(acac) 2, CoSalen, Cobalt picolinic ester and[Co(14)-4,11-diene-N 4]I 2[5,7,7,12,14,14-hexa...It was found that photopromoted carbonylation of olefins and CO 2 under ambient conditions could be catalyzed by Co(OAc) 2, Co(acac) 2, CoSalen, Cobalt picolinic ester and[Co(14)-4,11-diene-N 4]I 2[5,7,7,12,14,14-hexamethyl-1,4,8,11-tetraazacyclotetradeca-4,11-dieneatocobalt(Ⅱ)]. The carbonylation of cyclohexene gave some by-products of cyclo-C 6H 11-CH 2OH, cyclo-C 6H 11-CHO and cyclo-C 6H 11-COCH 3, which were established by labelling studies with 13CO 2, 13CH 3OH, CD 3OD and CD 3COCD 3. CH 3(CH 2) 7-CH 2OH, CH 3(CH 2) 7-CHO and CH 3(CH 2) 7-COCH 3 were also confirmed as the by-products of carbonylation of 1-octene.展开更多
Photopromoted carbonylation of bromohydrocarbon catalyzed by cobalt complexes can be carried out under ambient conditions in CH3OH/DMF.It is found that DMF can be decomposed into CO under irradiation and thus can be u...Photopromoted carbonylation of bromohydrocarbon catalyzed by cobalt complexes can be carried out under ambient conditions in CH3OH/DMF.It is found that DMF can be decomposed into CO under irradiation and thus can be used as a CO source for the photopromoted carbonylationof bromohydrocarbon,which has been proved by isotope experiment of H13CON（CH3）2.In this paper,the effect of different cobalt catalysts on photopromoted carbonylation of bromohydrocarbon is studied and the way which photopromoted carbonylation of bromohydrocarbon proceed through is deduced.展开更多
文摘It was found that photopromoted carbonylation of olefins and CO 2 under ambient conditions could be catalyzed by Co(OAc) 2, Co(acac) 2, CoSalen, Cobalt picolinic ester and[Co(14)-4,11-diene-N 4]I 2[5,7,7,12,14,14-hexamethyl-1,4,8,11-tetraazacyclotetradeca-4,11-dieneatocobalt(Ⅱ)]. The carbonylation of cyclohexene gave some by-products of cyclo-C 6H 11-CH 2OH, cyclo-C 6H 11-CHO and cyclo-C 6H 11-COCH 3, which were established by labelling studies with 13CO 2, 13CH 3OH, CD 3OD and CD 3COCD 3. CH 3(CH 2) 7-CH 2OH, CH 3(CH 2) 7-CHO and CH 3(CH 2) 7-COCH 3 were also confirmed as the by-products of carbonylation of 1-octene.
文摘Photopromoted carbonylation of bromohydrocarbon catalyzed by cobalt complexes can be carried out under ambient conditions in CH3OH/DMF.It is found that DMF can be decomposed into CO under irradiation and thus can be used as a CO source for the photopromoted carbonylationof bromohydrocarbon,which has been proved by isotope experiment of H13CON（CH3）2.In this paper,the effect of different cobalt catalysts on photopromoted carbonylation of bromohydrocarbon is studied and the way which photopromoted carbonylation of bromohydrocarbon proceed through is deduced.
