申请人:——
公开号:US20030114715A1
公开(公告)日:2003-06-19
Alkenyl ethers are prepared by reacting the corresponding alcohols or phenols with acetylenes in the liquid phase in the presence of basic alkali metal compounds and a cocatalyst comprising compounds of the formula (Ia) and/or (Ib)
R
1
O—(CH
2
CH
2
CH
2
CH
2
O)
n—
H (Ia)
R
1
O—(CH
2
CH
2
CH
2
CH
2
O)
n—
H
2
, (Ia)
where R
1
, R
2
are, independently of one another, C
1
-C
6
-alkyl or C
2
-C
6
-alkenyl, or R
1
and R
2
together form a butyl unit and n is 1, 2, 3, 4 or 5.
烯丙醚通过在液相中存在碱性金属化合物和协同催化剂的情况下,将相应的醇或酚与乙炔反应制备而成,其中所述协同催化剂包括化合物(Ia)和/或(Ib)的公式,(Ia)R1O—(CH2CH2CH2CH2O)n—H (Ia)R1O—(CH2CH2CH2CH2O)n—H2, (Ia)其中,R1,R2是独立的C1-C6烷基或C2-C6烯基,或R1和R2共同形成丁基单元,n为1、2、3、4或5。