Method for preparing alpha-replacing malonic acid diacetoxyiodo derivative

A technology of diethyl malonate and diethyl oxosuccinate, which is applied in the field of preparing diethyl malonate derivatives, can solve the problems of complex process, large environmental pollution, harsh reaction conditions, etc. The effect of stable conditions, safe process and simple operation
CN102531897AActive Publication Date: 2012-07-04ASYMCHEM LAB TIANJIN +4
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
ASYMCHEM LAB TIANJIN
Publication Date
2012-07-04

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Abstract

The invention relates to a method for preparing an alpha-a replacing malonic acid diacetoxyiodo derivative. Replacing ethyl acetate and oxalic acid diacetoxyiodo which are already commercialized raw materials on the market or easy to produce are selected as initial raw materials, and after the two steps of condensation and oxidation, target products are synthesized. The method for preparing alpha-the replacing malonic acid diacetoxyiodo derivative is easy in obtaining raw materials, high in conversion rate of raw materials, high in purity yield, stable in process condition, simple in operation and suitable for large-scale production, and provides a novel idea and method for preparing alpha-the replacing malonic acid diacetoxyiodo derivative.
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Description

(1) Technical field:

[0001] The invention relates to a method for preparing diethyl malonate derivatives, in particular to a method for preparing α-substituted diethyl malonate derivatives. (two) background technology:

[0002] Diethyl malonate derivatives are the standard additives with the maximum allowable usage amount and the maximum allowable residue amount in food additives; at the same time, they are widely used in organic synthesis, the production of medicines, pesticides, spices, dyes, etc., and can also be used for the preparation of amino acids, Widely used in biochemical research. In addition, diethyl malonate derivatives can also be used in the synthesis of phytochemical insecticides, hydroxyquinoline or pyrazole carboxylates, and quinoline antimalarials. Therefore, diethyl malonate derivatives have extremely wide fields and very broad development prospects, and it is of great significance to develop a high-efficiency, low-cost synthesis process of diethyl malo...

Claims

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