Method for producing polyalkylene glycol derivative having amino group at end, polymerization initiator for use in the same, and alcohol compound as raw material for the polymerization initiator
申请人:Shin-Etsu Chemical Co., Ltd.
公开号:US09708350B2
公开(公告)日:2017-07-18
A method for producing a narrowly distributed and high-purity polyalkylene glycol derivative having an amino group at an end, a polymerization initiator for use in the method, and a precursor of the polymerization initiator are provided.
The present invention provides: a method for producing a polyalkylene glycol derivative having an amino group at an end, using, as a polymerization initiator, a compound represented by the general formula (I); a compound represented by the following general formula (I); and a precursor thereof:
wherein RA1a and RA1b each independently represent a protective group of the amino group, or one of RA1a and RA1b represents H and the other represents a protective group of the amino group, or RA1a and RA1b bind to each other to represent a cyclic protective group forming a ring; RA2 represents a linear, branched, or cyclic hydrocarbon group having 1 to 6 carbon atoms; RA3 represents a single bond, or a linear, branched, or cyclic hydrocarbon group having 1 to 20 carbon atoms, and the hydrocarbon group may contain a heteroatom; the total number of carbon atoms (or the total number of carbon atoms and heteroatoms) of RA2 and RA3 is 4 or more; and M represents an alkali metal.
提供一种用于生产具有末端氨基的窄分布和高纯度聚烷基二醇衍生物的方法,以及用于该方法的聚合引发剂和聚合引发剂的前体。本发明提供了一种生产具有末端氨基的聚烷基二醇衍生物的方法,其中使用一种由通用式(I)表示的化合物作为聚合引发剂;一种由以下通用式(I)表示的化合物;以及其前体:其中RA1a和RA1b各自独立地表示氨基的保护基,或者RA1a和RA1b中的一个表示H,另一个表示氨基的保护基,或者RA1a和RA1b结合在一起表示形成环的环保护基;RA2表示具有1至6个碳原子的线性、支链或环烃基;RA3表示单键,或者具有1至20个碳原子的线性、支链或环烃基,且烃基可以含有杂原子;RA2和RA3的碳原子总数(或碳原子和杂原子的总数)为4或更多;M代表碱金属。