申请人:Dow Global Technologies LLC
公开号:US20150025262A1
公开(公告)日:2015-01-22
A bis(aryl)acetal has the formula
wherein Y
1
and Y
2
are each independently chloro, bromo, iodo, mesylate, tosylate, triflate, or B
x
, provided that Y
1
and Y
2
are not both selected from chloro, bromo, and iodo; 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 C
6-18
arylene, or unsubstituted or substituted C
3-18
heteroarylene; 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 C
1-18
linear or branched alkyl, unsubstituted or substituted C
3-20
cycloalkyl, unsubstituted or substituted C
6-18
aryl, or unsubstituted or substituted C
3-20
heteroaryl. The bis(aryl)acetal is useful as a monomer for oligoacetal and polyacetal synthesis via Suzuki polycondensation.
一种二(芳基)缩醛的化学式为Y1和Y2分别独立地为氯、溴、碘、甲磺酸盐、对甲苯磺酸盐、三氟甲磺酸盐或Bx,但要求Y1和Y2不同时选自氯、溴和碘;每个Bx的出现都是通过硼原子与Ar1或Ar2键合的含硼官能团;Ar1和Ar2分别独立地为未取代或取代的C6-18芳基烃或未取代或取代的C3-18杂环烃,但要求Ar1和Ar2不能共价连接以形成包括-Ar1-O-C-O-Ar2-的环结构;R1和R2分别独立地为氢、未取代或取代的C1-18直链或支链烷基、未取代或取代的C3-20环烷基、未取代或取代的C6-18芳基或未取代或取代的C3-20杂环烷基。该二(芳基)缩醛可用作Suzuki缩聚反应的寡缩醛和聚缩醛单体。