Process for Production of Alkyl Tin Alkoxide Compound, and Process for Production of Carbonic Acid Ester Using the Compound
申请人:Shinohata Masaaki
公开号:US20100292496A1
公开(公告)日:2010-11-18
The present invention provides a process for producing: a compound represented by XOR
2
; a dialkyl tin dialkoxide compound having one tin atom, two Sn—R
1
bonds and two Sn—OR
2
bonds; and/or a tetraalkyl dialkoxy distannoxane compound having one Sn—O—Sn bond, in which each tin atom of the tetraalkyl dialkoxy distannoxane compound has two Sn—R
1
bonds and one Sn—OR
2
bond, the process comprising reacting in the absence of a catalyst at least one alkyl tin compound selected from the group consisting of i) and ii) below:
i) a dialkyl tin compound having one tin atom, two Sn—R
1
(wherein R
1
represents an alkyl group) bonds, and two Sn—OX bonds (wherein OX is a group in which HOX that is a conjugate acid of OX is a Bronsted acid having a pKa of from 0 to 6.8); and
ii) a tetraalkyl distannoxane compound having one Sn—O—Sn bond, in which each tin atom of the tetraalkyl distannoxane compound has two Sn—R
1
bonds and one Sn—OX bond (wherein OX is a group in which HOX that is a conjugate acid of OX is a Bronsted acid having a pKa of from 0 to 6.8); and
a carbonic acid ester represented by R
2
OCOOR
2
(wherein R
2
represents a linear or branched, saturated or unsaturated hydrocarbon group, a hydrocarbon group having a saturated or unsaturated cyclic hydrocarbon substituent, or a Y—CH
2
— group (wherein Y represents an alkyl polyalkylene group, an aromatic group or a cyclic saturated or unsaturated alkylene ether group)), and/or
an alcohol represented by R
2
OH (wherein R
2
is the same as defined above).
本发明提供了一种生产过程:产生一个由XOR表示的化合物;具有一个锡原子、两个Sn—R1键和两个Sn—OR2键的二烷基锡二烷氧化合物;和/或具有一个Sn—O—Sn键的四烷基二烷氧基二锡烷氧化合物,其中四烷基二烷氧基二锡烷氧化合物的每个锡原子具有两个Sn—R1键和一个Sn—OR2键,所述过程包括在缺乏催化剂的情况下反应以下所述组中选择的至少一种烷基锡化合物:
i) 具有一个锡原子、两个Sn—R1(其中R1代表烷基基团)键和两个Sn—OX键(其中OX是HOX的共轭酸,HOX是具有从0到6.8的pKa的Bronsted酸的群)的二烷基锡化合物;和
ii) 具有一个Sn—O—Sn键的四烷基二锡烷氧化合物,其中四烷基二锡烷氧化合物的每个锡原子具有两个Sn—R1键和一个Sn—OX键(其中OX是HOX的共轭酸,HOX是具有从0到6.8的pKa的Bronsted酸的群);和
由R2OCOOR2(其中R2代表线性或支链、饱和或不饱和碳氢基团、具有饱和或不饱和环烃取代基的碳氢基团,或Y—CH2—基团(其中Y代表烷基多聚烯基基团、芳香基团或环状饱和或不饱和烷基醚基团))表示的碳酸酯;和/或
由R2OH(其中R2与上述定义相同)表示的醇。