摘要
在环戊二烯、异戊二烯、叔丁基乙炔使用负载型均相催化剂PdCl_2-PVP或PdCl_2-PVP/Al_2O_3选择加氢过程中,单烯的高选择性一般仅能维持很短时间,加入合适的给电子试剂如联氨、α,α′-联吡啶、乙二胺、三乙胺、三苯膦等,可以减缓甚至停止单烯的加氢,从而维持单烯的高选择性。
In the selective hydrogenation of cyclopentadiene, isoprene or t-butylacetylene using heterogenized homogeneous catalyst, the high selectivity of monoene formation only appears in a very short time interval. The addition of suitable electron donors euch as diamine, α, α'-dipyridine, ethylenediamine, triphenyl phosphine etc. can decrease or even cease the monoene hydrogenation and thereby keep the high monoene selectivity after reaching its maximum.
出处
《化学学报》
SCIE
CAS
CSCD
北大核心
1993年第5期490-495,共6页
Acta Chimica Sinica
基金
国家自然科学基金
