作者:Bernd Wrackmeyer、Angelika Sebald
DOI:10.1016/s0022-328x(97)00319-7
日期:1997.10
of a PtC bond, and formation of an alkynylborate-like intermediate in which a positively charged platinum fragment is coordinated to the CC bond. In most cases, the alkenylplatinum complexes of the type 9–13, 28, 30 which result from 1,1-organoboration are not stable, and either η2-alkyne platinum(0) (15–21, 29) or η3-borylalene platinum(0) complexe (22–27) or both are the next products. The proposed
1-Alkynylplatinum(II)的类型的复合物的顺式- [(DPPE)的Pt(CCR 1 2 ] [ 4,R 1 我(一),BU(b)中,C(Me)的CH 2( e),Ph(d),SiMe 3(e)]顺式-[(dmpe)Pt(CCMe)2 ](5a),顺式-[(depe)Pt(CCPh)2 ] (图6d),顺式- [(ET 3 P)2铂(“卜)(CCR 1)] [ 7:R 1 我(一个。)PH(d)和反式-[((Et 3 P)2 Pt((E)-2-戊烯基)(CC-Me)](8a)与三烷基硼烷R 3 B [2,RMe(a),Et(b),Pr(c)]通过1,1-有机合成。这涉及到PtC键的裂解,以及形成炔基硼酸酯样中间体,其中带正电的铂片段与CC键配位。在大多数情况下,该类型的复合物alkenylplatinum 9-13,28,30从1,1- org