R2Ge=SnR′2 and RR′Ge=SnRR′ (R = SiMetBu2, R′=2,4,6-iPr3C6H2):: The new stable germastannenes

被引：33

作者：

Sekiguchi, A ^{[1
]}

Izumi, R ^{[1
]}

Lee, VY ^{[1
]}

Ichinohe, M ^{[1
]}

机构：

[1] Univ Tsukuba, Dept Chem, Tsukuba, Ibaraki 3058571, Japan

来源：

ORGANOMETALLICS | 2003年 / 22卷 / 07期

关键词：

D O I：

10.1021/om021001y

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

1,1-Bis(di-tert-butylmethylsilyl)-2,2-bis(2,4,6-triisopropylphenyl)-1-germa-2-stannaethene (2), containing a >Ge = Sn < double bond, was prepared as highly air- and moisture-sensitive deep violet crystals by the coupling reaction of bis(di-tert-butylmethylsilyl)dilithiogermane with dichlorobis(2,4,6-triisopropylphenyl)stannane in THF. The germastarmene 2 easily undergoes thermal isomerization to form the corresponding symmetrically substituted isomer (E)-1,2-bis(di-tert-butylmethylsilyl)-1,2-bis(2,4,6-triisopropylphenyl)-1-germa-2-stannaethene (3) by the dyotropic 1,2-shifts of the silyl and aryl substituents.

引用

页码：1483 / 1486

页数：4

共 27 条

[1]

[Anonymous], 1998, CHEM ORGANIC SILICON

[2]

Baines K. M., 1996, ADV ORGANOMET CHEM, V39, P275, DOI DOI 10.1016/S0065-3055(08)60470-0

[3] THERMOLYSIS OF A SILADIGERMIRANE - EVIDENCE FOR THE FORMATION OF A GERMASILENE [J].

BAINES, KM ;

COOKE, JA .

ORGANOMETALLICS, 1991, 10 (10) :3419-3421

[4]

Chaubon M. A., 1996, J CHEM SOC CHEM COMM, P2621

[5]

Driess M., 1996, ANGEW CHEM INT EDIT, V35, P828, DOI DOI 10.1002/ANIE.199608281

[6] Doubly bonded derivatives of germanium [J].

Escudie, J ;

Ranaivonjatovo, H .

ADVANCES IN ORGANOMETALLIC CHEMISTRY, VOL 44, 1999, 44 :113-174

[7] RECENT DEVELOPMENTS IN THE CHEMISTRY OF STABLE DOUBLY BONDED GERMANIUM COMPOUNDS [J].

ESCUDIE, J ;

COURET, C ;

RANAIVONJATOVO, H ;

SATGE, J .

COORDINATION CHEMISTRY REVIEWS, 1994, 130 (1-2) :427-480

[8] A new approach to the synthesis of unsymmetrical disilenes and germasilene:: Unusual 29Si NMR chemical shifts and regiospecific methanol addition [J].

Ichinohe, M ;

Arai, Y ;

Sekiguchi, A ;

Takagi, N ;

Nagase, S .

ORGANOMETALLICS, 2001, 20 (20) :4141-4143

[9] The first metalladiene of Group 14 elements with a silole-type structure with Si=Ge and C=C double bonds [J].

Lee, VY ;

Ichinohe, M ;

Sekiguchi, A .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2000, 122 (50) :12604-12605

[10] The first three-membered unsaturated rings consisting of different heavier group 14 elements: 1-disilagermirene with a Si=Si double bond and its isomerization to a 2-disilagermirene with a Si=Ge double bond [J].

Lee, VY ;

Ichinohe, M ;

Sekiguchi, A .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2000, 122 (37) :9034-9035

← 1 2 3 →