Boron-Oxygen Bond Cleavage of Pinacolborane and Catecholborane Mediated by a Scandium Phosphinidene Complex  

作　　者：Wei Wang Yingdong Lv Xiaofeng Gou Xuebing Leng Yaofeng Chen 

机构地区：[1]Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education,College of Chemistry and Materials Science,Northwest University,Xi'an,Shaanxi 710069,China [2]State Key Laboratory of Organometallic Chemistry,Shanghai Institute of Organic Chemistry,Chinese Academy of Sciences,Shanghai 200032,China

出　　处：《Chinese Journal of Chemistry》2014年第8期752-756,共5页中国化学（英文版）

基　　金：the National Natural Science Foundation of China(Nos.21325210,21132002 and 21121062);the State Key Basic Research&Development Program(No.2012CB821600).

摘　　要：Reactions of bis-scandium bridged phosphinidene complex,[LSc(μ-PAr)]_(2)(L=MeC(NDIPP)CHC(Me)(NCH_(2)CH_(2)N(^(i)Pr)_(2)),DIPP=2,6-(^(i)Pr)_(2)C_(6)H_(3);Ar=2,6-Me_(2)C_(6)H_(3))(1),with pinacolborane,catecholborane,and 9-borabicyclo[3.3.1]nonane(9-BBN)are reported.Complex 1 reacts with pinacolborane and catecholborane to give scandium pinacolate(2)and catecholate(3),showing B-O bond cleavage.These two scandium complexes contain an unusual[P(Ar)B(H)P(Ar)]^(2−)dianion,which displays aμ-η^(2):η^(2) coordination model.On the other hand,reaction of complex 1 with 9-BBN affords the B-H bond cleavage product,1,3-diphospha-2,4-diboracyclobutane(4).

关 键 词：catecholborane PHOSPHINIDENE pinacolborane SCANDIUM REACTIVITY 

分 类 号：O62[理学—有机化学]