METHOD FOR PREPARING PROPYLSILANE FUNCTIONALIZED AT POSITION 3 Russian patent published in 2006 - IPC C07F7/14 C07F7/08 

FIELD: organic chemistry, chemical technology.

SUBSTANCE: invention relates to a method for preparing propylsilanes functionalized at position 3. Method is realized by the addition reaction of allyl compounds of the general formula (I): H₂C=CH-CH₂X (I) wherein X can represents Cl, Br, J, F, -CN, -SCN, -SH, -SR, -OH, -NRR¹ and -OR; both RR¹ mean independently of one another (C₁-C₆)-alkyl or (C₃-C₇)-alkyl, and to silanes of the formula (II): R²-R³-R⁴-SiH (II) wherein each R², R³ and R⁴ can mean independently of one another hydrogen atom, halogen atom, (C₁-C₆)-alkyl, (C₁-C₆)-haloalkyl, (C₃-C₆)-allyl, (C₁-C₄)-alkoxy-group, phenyl, aryl or aralkyl. Reaction is carried out in the range of temperature from 0° to 200°C, under pressure in limits from 800 mbars to 25 bars and in the presence of platinum catalyst. Used silane of the formula (II) taken in 3-100-fold molar excess with respect to allyl compound of the formula (I) is subjected for interaction in the presence of catalyst. Proposed method provides inhibition of reaction of by-side substances formation.

EFFECT: improved preparing method.

10 cl, 3 dwg, 13 ex