Photoinduced Charge Separation in Rigid Bichromophoric Compounds and Charge Transfer State Electron Transfer Reactivity
摘要:
Bichromophoric compounds giving, after photoexcitation, a locally excited state (LE) rapidly followed by an intramolecular charge transfer (CT) state were designed using a Paddon-Row type synthesis. The electron-accepting end of the CT state is chosen in order to play the role of an electron relay versus external accepters. In this way, electron transfer photosensitization is made available by using the CT state of bichromophores. The photophysics of the synthesized bichromophores is discussed; and the reductive dechlorination of polychlorinated benzenes is used as a test reaction. The bichromophoric sensitizer is unexpectedly found to be totally regenerated: the reaction is shown to be initiated by an electron transfer from the CT state to the chlorinated quencher. A rapidly breaking radical anion leads to the dechlorination, while the recombination of the sensitizer radical cation with the released chloride anion opens the way to the sensitizer recovery.
Novel long acting betamimetics for the treatment of respiratory diseases
申请人:Bouyssou Thierry
公开号:US20050209227A1
公开(公告)日:2005-09-22
The present invention relates to the compounds of general formula 1
wherein the groups R, R
1
, R
2
, R
3
and A may have the meanings given in the claims and specification, processes for preparing them and their use as medicaments, particularly for the treatment of inflammatory and obstructive respiratory complaints.
Long acting betamimetics for the treatment of respiratory diseases
申请人:Boehringer Ingelheim International GmbH
公开号:US07244728B2
公开(公告)日:2007-07-17
The present invention relates to the compounds of general formula 1
wherein the groups R, R1, R2, R3 and A may have the meanings given in the claims and specification, processes for preparing them and their use as medicaments, particularly for the treatment of inflammatory and obstructive respiratory complaints.
NEUE BENZOXAZINONDERIVATE ALS LANGWIRKSAME BETAMIMETIKA ZUR BEHANDLUNG VON ATEMWEGSERKRANKUNGEN
申请人:BOEHRINGER INGELHEIM INTERNATIONAL GMBH
公开号:EP1730126A1
公开(公告)日:2006-12-13
US7244728B2
申请人:——
公开号:US7244728B2
公开(公告)日:2007-07-17
[DE] NEUE BENZOXAZINONDERIVATE ALS LANGWIRKSAME BETAMIMETIKA ZUR BEHANDLUNG VON ATEMWEGSERKRANKUNGEN<br/>[EN] NOVEL BENZOXAZINONE DERIVATIVES USED AS LONG-ACTING BETAMIMETICS FOR TREATING RESPIRATORY ILLNESSES<br/>[FR] NOUVEAUX DERIVES DE BENZOXAZINONE UTILISES COMME BETA-MIMETIQUES DANS LE TRAITEMENT DES AFFECTIONS DES VOIES RESPIRATOIRES
申请人:BOEHRINGER INGELHEIM INT
公开号:WO2005092870A1
公开(公告)日:2005-10-06
Die vorliegende Erfindung betrifft die Verbindungen der allgemeinen Formel (I), worin die Reste R, R1, R2, R3 und A die in den Ansprüchen und in der Beschreibung genannten Bedeutungen haben können, Verfahren zu deren Herstellung sowie deren Verwendung als Arzneimittel, insbesondere zur Behandlung von entzündlichen und obstruktiven Atemwegserkrankungen.