An efficient synthesis of conjugation-expanded carba- and azuliporphyrins using a bicyclo[2.2.2]octadiene-fused tripyrrane
摘要:
A bicyclo[2.2.2]octadiene-fused tripyrrane was synthesized as a first versatile reagent for the preparation of pi-expanded heteroporphyrins. The reaction of the tripyrrane with 1,3-diformylindene and azulene-1,3-dicarbaldehyde afforded the corresponding heteroporphyrins. which were easily converted into tetrabenzocarbaporphyrin and tribenzoazuliporphyrin by retro Diels-Alder reaction. (C) 2004 Elsevier Ltd. All rights reserved.
Disclosed is a method for manufacturing isoindolic compound, which can adopt a condition capable of being put to industrially practical use, which can produce stable isoindolic compound, and which can further produce the isoindolic compound with a high yield. The method for manufacturing isoindolic compound comprises a thermal treatment step where a compound of which molecule includes a structure of pyrrole fused with bicyclo [2.2.2] octadiene skeleton is subjected to a supercritical carbon dioxide atmosphere. The thermal treatment step is preferably performed at a temperature of not less than 50° C. and not more than 300° C.
US8481753B2
申请人:——
公开号:US8481753B2
公开(公告)日:2013-07-09
Efficient synthesis of isoindoles using supercritical carbon dioxide
Bicyclopyrroles were efficiently converted to the corresponding isoindoles by a retro Diels-Alder reaction in supercriticalcarbondioxide. By adding ethylene gas as an oxygen scavenger, the isoindole yield was further improved.
An efficient synthesis of conjugation-expanded carba- and azuliporphyrins using a bicyclo[2.2.2]octadiene-fused tripyrrane
作者:Tetsuo Okujima、Naoki Komobuchi、Yusuke Shimizu、Hidemitsu Uno、Noboru Ono
DOI:10.1016/j.tetlet.2004.05.041
日期:2004.7
A bicyclo[2.2.2]octadiene-fused tripyrrane was synthesized as a first versatile reagent for the preparation of pi-expanded heteroporphyrins. The reaction of the tripyrrane with 1,3-diformylindene and azulene-1,3-dicarbaldehyde afforded the corresponding heteroporphyrins. which were easily converted into tetrabenzocarbaporphyrin and tribenzoazuliporphyrin by retro Diels-Alder reaction. (C) 2004 Elsevier Ltd. All rights reserved.