CHAINS AND STARS IN ORGANOPLATINUM OLIGOMERS

被引：24

作者：

ACHAR, S ^{[1
]}

PUDDEPHATT, RJ ^{[1
]}

机构：

[1] UNIV WESTERN ONTARIO,DEPT CHEM,LONDON,ON N6A 5B7,CANADA

来源：

ORGANOMETALLICS | 1995年 / 14卷 / 04期

关键词：

D O I：

10.1021/om00004a023

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

A method for synthesis of new oligomers and a polymer containing organoplatinum centers is reported. Reaction of[PtMe(2)(bu(2)bipy)], 1b, bu(2)bipy = 4,4'-di-tert-butyl-2,2'-bipyridine, with 4-(bromomethyl)-4'-methyl-2,2'-bipyridine, A, gave the complex [PtBrMe(2)(bu(2)bipy)(CH(2)C(5)H(3)NC(5)H(3)NMe)], 2, by oxidative addition of the C-Br bond to platinum(II). Reaction of 2 with [Pt(2)Me(4)(mu-SMe(2))(2)], B, gave the (PtPtII)-Pt-IV complex [PtBrMe(2)(bu(2)bipy)(mu-CH(2)C(5)H(3)NC(5)H(3)NMe)PtMe(2)], 3, by displacement of the Me(2)S ligands from B by the free bipyridine group of 2 to regenerate a reactive dimethylplatinum(II) center. Repetition of this cycle of reactions gave [PtBrMe(2)(bu(2)bipy){(mu-CH(2)C(5)H(3)NC(5)H(3)NMe)PtBrMe(2)}(n)(CH(2)C(5)H(3)Nc(5)H(3)NMe)] (4, n = 1; 6, n = 2) and [PtBrMe(2)(bu(2)bipy){(mu-CH(2)C(5)H(3)NC(5)H(3)NMe)PtBrMe(2)}(n)(mu-CH2C5H3-NC(5)H(3)NMe)PtMe(2)] (5, n = 1; 7, n = 2). Reaction of A with B gave the insoluble polymer [{PtBrMe(2)(mu-CH(2)C(5)H(3)NC(5)H(3)NMe)}(n)]. Star-shaped oligomers containing platinum(IV) centers were obtained by reaction of 1,2,4,5-(BrCH2)(4)C6H2 with the complexes 1, 3, or 5 to give 1,2,4,5-[PtBrMe(2)(bu(2)bipy){(eta-CH2C5H3NC5H(3)NMe)PtBrMe(2)}nCH2](4)-C6H2 (n = 0, 10b; n = 1, 11; and n = 2, 12, respectively).

引用

页码：1681 / 1687

页数：7

共 10 条

[1] Mekelburger H.-B., Jaworek W., Vogtle F., Angew. Chem., Int. Ed. Engl., 31, (1992)
[2] Jawad J.K., Puddephatt R., J. Organomet. Chem., 117, (1976)
[3] Achar S., Puddephatt R.J., Angew. Chem., Int. Ed. Engl., 33, (1994)
[4] Chaudhury N., Puddephatt R.J., J. Organomet. Chem., 84, (1975)
[5] Byers P.K., Canty A., J. J. Chem. Soc., Chem. Commun., (1988)
[6] Jerome R., Henrioulle-Granville M., Boutevin B., Robin J., J. Prog. Polym. Sci., 16, (1991)
[7] Ullah S.S., Azam K.A., Hashem M.A., Ahmed I., Karim M.M., Khan S.M.A., Indian J. Chem., 26A, (1987)
[8] Anderson G.K., Adv. Organomet. Chem., 35, (1993)
[9] Pittman C.U., New Monomers and Polymers, (1984)
[10] Gould S., Strouse G.F., Meyer T.J., Sullivan B.P., Inorg. Chem., 30, (1991)

← 1 →