SU447406A1 - The method of obtaining organic (triorgansilylacyloxy) -stannans - Google Patents

Description

This invention relates to the field of the production of new organosilicon derivatives of organocyloxistannanes containing a triorganosyl group in the acyl radical. These compounds can be used as stabilizers of halogen-containing polymers, antioxidants, biologically active compounds, as well as monomers for the preparation of polymer materials with special properties.

Methods for the preparation of organilacyloxistannanes are known, based on the reaction of carboxylic acids with organosilanes and tri-triangles. However, the methods of obtaining organilacyloxistannans containing silicones in their composition have not been written off in the literature, and such compounds of this type are not known.

Describes a method for preparing organosilicone organo-compounds, based on the reaction of the organic strynarylsilylacyloxy) silanes with hexa-organicbestannoxanes, tri-organstanstanols or organicalkoiestanania according to the scheme

RRVsiOCXSiKVR RnSn (.OY) 4.-rt

About ,, Sn lOCOXSiRRR) -c

where R is an organic radical; 15 X is a divalent organic radical, which may contain functional groups or multiple bonds; R,, R - organic radicals

or organoxy groups; Y - Snl ,, H, R.

The reaction is carried out with simple mixing of the reagents and heating by gentle heating, the separation of the reaction products is carried out; ordinary come. The yield of the target products reaches 90J5.

Example 1. Methyl triethylamine 2 methyl: 3 triethyl and LYLPROPCH1-1-1 ACIDS

(С2Н5) ЗЗпОСХН (СНз) СН281 (С2Н5) з (I)

A mixture of 4.6 g of trimethylsilyl ether, 2 methyl, 3 triethylsilane, ProPega 1, Eislrta (C2H5) s81CH2CH (CH3) C0081 (CH3) g {bp 150 ° C / 2b 1 ° Hg; 0.8841; p 1,4397), synthesized by the addition of triethylsilane to the trimathylsilyl ester of methacrylic acid, and 4.0 g of triethyl ethoxy silane to be heated to 100-1200 ° C for 2 hours. Obtain 5.9 g (88) of compound I; bp 1 bH; / 4 w Hg;

p | 5 1.4895; m.p. 23-24 ° C.

Found,%: C 47.72; H 8.89:

Si6.76; , $ 7 CjgHjgO SiSn

Calculated,%: C 47.18; H 8.89:

$ 1b; 88; Sn29.24. Similarly receive: Three n butylstanvyl ester 2 methyl 3 triethylsilyl propyl 1 acid

) 3SnOCOCH (CH3) CH2Si (C2H5) 3; output so kip. 157-1 ° C / 2 w. (D 1 07gg; p 1.4785, MW: found 129.90; calculated 130.24

Found,%: C 54.57; H 9.76: 815.63, Sn23.80

Calculated,%: C 53.77; H 9.77; Si5j OfSn24,24

Triethylstannyl 3 methyl (diethoxy) silylpropyl g acid (C2H5) sBpOSOCH2CH10 (CX; 2H5) 2CH3J

output, c1.CoCH | / 2 mmHg 1.2025; a 20 1 4669; MK „:

found, 94.865S; calculated 94.75. Found,%: 40.77; H 7.99: St 6.86; Sn 28.97

Calculated,%: C 40.88; H 7, .86; 8i6.86; Sa28.95

Example 2. Triethylstancyl ether 2 methyl 3 triethylsilylpryl 1 acid (l) is obtained by heating to 110-120 ° C for .2 hours a mixture of 2.3 g of trimethylsilyl ether 2: methyl 5 triethylsilylpropane 1 acid and 1.8 g of hexaethyl ethyl ether. Yield 1.4 g

(87y.

Example 3. Triethylstanvyl ester 2 methyl 3 triethylsilyl propyl 1 acid (I) also receive

by heating a mixture of triethylstannol (2.23 g) and trimethylsilyl ether 2 methyl 3 triethylsilylpropyl-1 acid (2.) for 2 hours at 110-120 ° C. The yield of the residue is 2.76 g (85).

SUBJECT invented process for producing bodies (triorganilsililatsiloksi) stannanes, characterized in that the bodies (triorganilsililatsiloksi) - is reacted with a silane or organilalksksistannami triorganilstannolami or geksaorganilbistannoksanami followed by isolation of the desired product by known methods.