Four-Step Route to Novel Bisflavylium Dications - First Synthesis of Phloroglucinol-Type Derivatives
摘要:
Various bisflavylium dications have been prepared in an efficient four-step manner utilizing the acid-mediated condensation between bis(arylethynylketones) and activated phenols as the key step. Of special note is that phloroglucinol-type bisflavylium salts have been obtained for the first time thanks to this procedure.
Four-Step Route to Novel Bisflavylium Dications - First Synthesis of Phloroglucinol-Type Derivatives
摘要:
Various bisflavylium dications have been prepared in an efficient four-step manner utilizing the acid-mediated condensation between bis(arylethynylketones) and activated phenols as the key step. Of special note is that phloroglucinol-type bisflavylium salts have been obtained for the first time thanks to this procedure.
It is an object to provide a film having both high transparency and high heat resistance, and particularly a coating solution for forming a coating film from which an optical film can be produced. A triaroylbenzene-skeleton polymer in which a terminal of a polymer produced by polymerizing a compound of Formula [1] below is modified by a compound of Formula [2] below. A coating solution for forming a coating film, comprising the polymer. A film obtained from the coating solution for forming a coating film. In the formulae below, X
1
is a divalent group of Formula [1a], Formula [1b], or Formula [1c] below (where Y
1
and Y
2
are independently a C
1-2
alkylene group; n is an integer of 1 to 6; and m is an integer of 1 to 6), X
2
is divalent benzene, thiophene, furan, or fluorine, and X
3
is a hydrogen atom, a halogen atom, CF
3
, a C
1-6
alkoxy group, or a C
1-6
alkyl group.
US8455590B2
申请人:——
公开号:US8455590B2
公开(公告)日:2013-06-04
Four-Step Route to Novel Bisflavylium Dications - First Synthesis of Phloroglucinol-Type Derivatives
Various bisflavylium dications have been prepared in an efficient four-step manner utilizing the acid-mediated condensation between bis(arylethynylketones) and activated phenols as the key step. Of special note is that phloroglucinol-type bisflavylium salts have been obtained for the first time thanks to this procedure.