Reaction of dimethylaluminumfluoride with primary amines RNH2 (R = t-Bu, 2,6-i-Pr2C6H3)

被引：10

作者：

Rennekamp, C ^{[1
]}

Stasch, A ^{[1
]}

Müller, P ^{[1
]}

Roesky, HW ^{[1
]}

Noltemeyer, M ^{[1
]}

Schmidt, HG ^{[1
]}

Usón, I ^{[1
]}

机构：

[1] Univ Gottingen, Inst Anorgan Chem, D-37077 Gottingen, Germany

来源：

JOURNAL OF FLUORINE CHEMISTRY | 2000年 / 102卷 / 1-2期

关键词：

aluminumfluorides; AlF bond cleavage; fluorine nitrogen exchange;

D O I：

10.1016/S0022-1139(99)00236-5

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The first few steps of the title reaction of two bulky substituted primary amines with dimethylaluminumfluoride have been investigated in toluene. For RNH2 (R = 2,6-i-Pr2C6H3) the formation of an unexpected ring system (Me-2)Al-4(NHR)(2)F-2 (1, R = 2,6-i-Pr2C6H3) is observed. The reaction was repeated in an NMR tube and monitored by F-19 NMR spectroscopy. The product of Me2AlF and RNH2 (R = t-Bu) offers more information about the initial step of the reaction. During the course of the reaction the (Me2AlF)(4) ring is cleaved and yields the adduct Me2AlF . NH2R (2, R = t-Bu), which has a polymeric structure in the solid state. In both reactions no methane evolution was observed. (C) 2000 Elsevier Science S.A. All rights reserved.

引用

页码：17 / 20

页数：4

共 20 条

[1]

Denne W. A., 1971, Journal of Crystal and Molecular Structure, V1, P311, DOI 10.1007/BF01200805

[2] MOLECULAR-STRUCTURE OF DIMETHYLALUMINUM FLUORIDE TETRAMER, [(CH3)2A1F]4 [J].

GUNDERSEN, G ;

HAUGEN, T ;

HAALAND, A .

JOURNAL OF ORGANOMETALLIC CHEMISTRY, 1973, 54 (JUN16) :77-86

[3] CRYSTAL HANDLING AT LOW-TEMPERATURES [J].

KOTTKE, T ;

STALKE, D .

JOURNAL OF APPLIED CRYSTALLOGRAPHY, 1993, 26 :615-619

[4]

LONGO P, 1989, MAKROMOL CHEM, V190, P2357

[5]

LUX D, 1979, CRYST STRUCT COMMUN, V8, P41

[6]

Neumuller, 1993, ANGEW CHEM, V105, P1770

[7] A HEXANUCLEAR ORGANOGALLIUM FLUORIDE OXIDE [J].

NEUMULLER, B ;

GAHLMANN, F .

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION IN ENGLISH, 1993, 32 (12) :1701-1702

[8]

Sheldrick G.M., 1997, SHELX

[9] PHASE ANNEALING IN SHELX-90 - DIRECT METHODS FOR LARGER STRUCTURES [J].

SHELDRICK, GM .

ACTA CRYSTALLOGRAPHICA SECTION A, 1990, 46 :467-473

[10] Aminodimethylalanes (R(1)R(2)NAlMe(2)) as useful synthetic precursors of aminoalane difluorides using trimethyltin fluoride: Crystal structures of (2,6-i-Pr2C6H3)N(SiMe(3))AlMe(2) and (2,6-i-Pr2C6H3)N(SiMe(3))AlF2 [J].

Waezsada, SD ;

Liu, FQ ;

Murphy, EF ;

Roesky, HW ;

Teichert, M ;

Uson, I ;

Schmidt, HG ;

Albers, T ;

Parisini, E ;

Noltemeyer, M .

ORGANOMETALLICS, 1997, 16 (06) :1260-1264

← 1 2 →