申请人:Wright Chemical Corporation
公开号:US06362363B1
公开(公告)日:2002-03-26
A method for making a vinyl carbonate represented by the formula (I):
CH2═CHOC(O)X1R1 (I)
wherein X1 is oxygen or sulfur and R1 is a substituted or an unsubstituted aliphatic alkyl, aryl, aryl alkyl, olefinic, vinyl, or cycloaliphatic group comprises:
(a) reacting a compound represented by the formula (II):
X2C(O)X1R1 (II)
wherein X2 is a halogen other than fluorine, with a compound represented by the formula (III):
M1—F (III)
wherein M1 is selected from a Group IA metal, in the presence of a first phase transfer catalyst and a first organic solvent, to form a compound represented by the formula (IV):
FC(O)X1R1 (IV)
and
(b) reacting a compound represented by the formula (IV) with a compound represented by the formula (V):
CH2═CHOSi(R2)3 (V)
wherein R2 is a substituted or an unsubstituted aliphatic alkyl, aryl, aryl alkyl olefinic, vinyl, or cycloaliphatic group, or any combination thereof, in the presence of a metal salt represented by the formula M2—F wherein M2 is a Group IA metal, a second phase transfer catalyst, and a second organic solvent, to form the compound represented by formula (I).
一种制备由式(I)表示的乙烯碳酸酯的方法:CH2═CHOC(O)X1R1 (I)其中X1为氧或硫,R1为取代或未取代的脂肪族烷基、芳基、芳基烷基、烯烃、乙烯或环脂肪族基团,包括:(a)将由式(II)表示的化合物进行反应:X2C(O)X1R1 (II)其中X2为氟以外的卤素,与由式(III)表示的化合物进行反应:M1—F (III)其中M1选自IA族金属,在第一相转移催化剂和第一有机溶剂的存在下,形成由式(IV)表示的化合物:FC(O)X1R1 (IV)和(b)将由式(IV)表示的化合物与由式(V)表示的化合物进行反应:CH2═CHOSi(R2)3 (V)其中R2为取代或未取代的脂肪族烷基、芳基、芳基烷基、烯烃、乙烯或环脂肪族基团,或其任意组合,在金属盐M2—F的存在下,其中M2为IA族金属,第二相转移催化剂和第二有机溶剂,形成由式(I)表示的化合物。