A new argument in favor of the ether elimination mechanism: formation of acetals on action of molybdenum alkoxides on carbonyl compounds

被引：25

作者：

Kessler, VG

Nikitin, KV

Belokon, AI

机构：

[1] Swedish Univ Agr Sci, Dept Chem, S-75007 Uppsala, Sweden

[2] Moscow MV Lomonosov State Univ, Dept Chem, Moscow 119899, Russia

[3] AN Nesmeyanov Organoelement Cpds Inst, Moscow 117813, Russia

来源：

POLYHEDRON | 1998年 / 17卷 / 13-14期

关键词：

acetals; molybdenum alkoxides; carbonyl compounds;

D O I：

10.1016/S0277-5387(98)80006-5

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Molybdenum oxomethoxide and ethoxide are found to react very rapidly with aldehydes and ketones in both alcohol and hydrocarbon media transforming the latter into acetals and ketals respectively. The colloid solution of the molybdenum blue usually formulated as "MoO2.88. H2O"appears to be the major inorganic product of this reaction. The reaction mechanism includes presumably formation of a semiacetal molybdate and its subsequent decomposition with elimination of acetal. Different reaction pathways of metal alkoxides interaction with aldehydes and ketones are discussed. (C) 1998 Elsevier Science Ltd. All rights reserved.

引用

页码：2309 / 2311

页数：3

共 18 条

[1] Nonhydrolytic Sol-Gel process: Aluminium and zirconium titanate gels [J].