Steric control of the reduction of carbodiimides by samarium(II) and the synthesis of very crowded samarium(III) complexes

被引：33

作者：

Cole, Marcus L. ^{[1
]}

Deacon, Glen B. ^{[1
]}

Forsyth, Craig M. ^{[1
]}

Junk, Peter C. ^{[1
]}

Ceron, Dorian Polo ^{[1
]}

Wang, Jun ^{[1
]}

机构：

[1] Monash Univ, Sch Chem, Clayton, Vic 3800, Australia

来源：

DALTON TRANSACTIONS | 2010年 / 39卷 / 29期

关键词：

LIGANDS; LANTHANIDES; POLYMERIZATION; DERIVATIVES; REACTIVITY; CONVERSION; CHEMISTRY; AMIDINATE;

D O I：

10.1039/b922031c

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Reduction of N,N'-di(2,6-diisopropylphenyl)carbodiimide (DippNCNDipp) by [SmL(2)(thf)(2)] (1) (L = N,N'-bis(2,6-diisopropylphenyl)formamidinate, DippNC(H)NDipp) in PhMe gave [Sm(L)(3)] (2) in good yield. An analogous reaction of 1 with N,N'-dimesitylcarbodiimide (MesNCNMes) gave [SmL(2)(MesNC(H)NMes)] (3). In contrast, reduction of N,N'-dicyclohexylcarbodiimide (CyNCNCy) by 1 in PhMe gave mixture of products from which [SmL(2)(CyNC(CH(2)Ph)NCy)] (4) and [SmL(2)(CyNC(H)NCy)] (5) were isolated by fractional crystallisation. Using thf as the reaction solvent, solely compound 5 was crystallised. Reactions of [Sm(L)(2)(C CPh)(thf)] (6) with the carbodiimides RNCNR (R = Cy, Mes) gave [Sm(L)(2)(RNC(C CPh) NR)] (R = Cy (7) or Mes (8)) which are analogues of 4. No reaction was observed between 6 and DippNCNDipp.

引用

页码：6732 / 6738

页数：7

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