双（芳基）缩醛化合物;BIS (ARYL) ACETAL COMPOUNDS

摘要

一种双(芳基)缩醛，系具有式其中，Y 1 与Y 2 系各自独立为氯、溴、碘、甲磺酸根、甲苯磺酸根、三氟甲磺酸根、或B x ，限制条件为，Y 1 与Y 2 并非皆为选自氯、溴及碘者；B x 每次出现时系独立为经由硼原子键结至Ar 1 或Ar 2 之含硼官能基；Ar 1 与Ar 2 系各自独立为未经取代或经取代之C6-18伸芳基、或未经取代或经取代之C3-18伸杂芳基；限制条件为，Ar 1 与Ar 2 并未彼此共价链结形成含有-Ar 1 -O-C-O-Ar 2 -之环结构；以及，R 1 与R 2 系各自独立为氢、未经取代或经取代之C1-18线性或分支链烷基、未经取代或经取代之C3-20环烷基、未经取代或经取代之C6-18芳基、或未经取代或经取代之C3-20杂芳基。该双(芳基)缩醛系作为经由铃木缩聚反应合成寡缩醛及聚缩醛的单体。; each occurrence of B x is independently a boron-containing functional group bonded to Ar 1 or Ar 2 via a boron atom; Ar 1 and Ar 2 are each independently unsubstituted or substituted C6-18arylene, or unsubstituted or substituted C3-18heteroarylene; provided that Ar 1 and Ar 2 are not covalently linked to each other to form a ring structure that includes -Ar 1 -O-C-O-Ar 2 -; and R 1 and R 2 are each independently hydrogen, unsubstituted or substituted C1-18linear or branched alkyl, unsubstituted or substituted C3-20cycloalkyl, unsubstituted or substituted C6-18aryl, or unsubstituted or substituted C3-20heteroaryl. The bis(aryl)acetal is useful as a monomer for oligoacetal and polyacetal synthesis via Suzuki polycondensation.