The tetrakis(alkylthio)-olefins C2(SR)4(R = Me or Et) react with [PtCl2(PEt3)}2] in hot xylene to yield cis- and trans-[(Et3P)Cl[graphic omitted]tCl(PEt3)]; with C2(SEt)4 there is spectroscopic evidence for intermediates, cis- and trans-[(Et3P)Cl2[graphic omitted](RS)CC(SR)([graphic omitted]tCl2(PEt3)](R = Et). In contrast, the cyclic olefin [:[graphic omitted]]2 forms the SS″-bonded cis-[PtCl(PE
四(烷
硫基)-烯烃C 2(SR)4(R = Me或Et)在热二
甲苯中与[PtCl 2(PEt 3)} 2 ]反应生成顺式和反式[(Et 3 P)Cl [图省略] tCl(PEt 3)];对于C 2(
SEt)4,有中间体,顺式和反式-[(Et 3 P)Cl 2 [略图](RS)CC C(SR)([略图] tCl 2(PEt 3))的光谱学证据。](R = Et)。相反,环烯烃[:[省略图示]] 2形成SS ″键合的顺式-[PtCl(PEt 3)(烯烃)] [PtCl 3(PEt 3)];对于C 2(NMe 2)4和o -C 6 H 4(NMe 2)2发现相似的行为,相应的阳离子为[PtCl C 2(NMe 2)4 - NN ''}(PEt 3)] +( 6)和[
氯铂酸 ö -C 6 ħ 4(NME 2)2 -NN '}(PEt 3)] +。盐[PtCl C 2(NMe 2)4 - NN