SU386936A1 - METHOD OF OBTAINING VINYL ETHER DIETHYLOXYL CYLEDYTIOCARBAMATE - Google Patents

Description

one

This invention relates to a process for the preparation of unsaturated polymerizable organic dithiocarbamates.

Dialkylvinyloxyalkyldithiocarbamates can be used to make synthetic materials with anti-radiation activity.

The method consists in that the alkali metal salt of dithiocarbamic acid, for example potassium diethyldithiocarbamate, is reacted with haloalkyl vinyl ethers, for example vinyl-p-chloroethyl ether.

The process is conducted at 75-80 ° C in an aqueous-alcoholic medium. The desired product is isolated by known methods.

Example 1. Getting diethyl- (2-vinyloxyethyl) - dithiocarbomate

CH2 SNOSN2SP25S (5) S (S2P5) 2

A mixture of 10 g of potassium diethyldithiocarbamate and 5.7 g of vinyl - p - chloroethyl ether for 3.5 hours is heated at 75-80 ° C in 75 ml of a 35% aqueous-alcoholic solution. The lower organic layer is separated from the aqueous, the latter is extracted with ether, the ether extracts and the organic layer is dried with potash and distilled. Obtain 8.1 g (70.4% of theoretical) of the product with m. Kip. 126 ° C / 1 mm Hg v .; 1.5650; df 1.0874; MRn found 65.70;

calculated 65.47.

Found,%; C, 49.65; H 7.78; S 29.17.

C9Hi70iNS2.

Calculated,%: C 49.27; H 7.81; S 29.23.

Example 2. Obtaining diethyl- (4-vinyloxybutyl) - dithiocarbamate

CH2 CIiOCH2CH2CH, CH2SCN (C2H5) 2

II Oh

After heating for 3 hours at 80 ° C, 4.0 g of potassium diethyldithiocarbamate and 2.3 g of vinyl - b - bromobutyl ether in 33 L1L of a 35% strength alcohol solution and subsequent processing, as described in Example 1, is obtained 2.17 g (69.1%) product with m. Bale. 134 ° C / / 0.6 mm Hg v .; p 1,5526; df 1.0533; MRr found 75.14; calculated 76.06.

Found,%: C 53.38; H 8.38; S 25.69.

CuH2iONS2.

Calculated,%: C 53.39; H 8.55; S 25.92.

Subject invention

A process for the preparation of diethyloxyalkyl dithiocarbamate vinyl ethers, e.g.

diethyl- (2-vinyloxyenyl) -dithio 1-carbamate, characterized in that potassium diethyldithiocarbamate is reacted with haloalkyl ether, for example vinyl-p-chloroethyl ether, when heated to 75-80 ° C in a water-alcohol solution, followed later, which will be used later, which will be used later, which will be used later, which will be used later in the future with further addition of chloro ethyl ether, such as vinyl - p - chloroethyl ether in ways.