Novel method for the preparation of derivatives of dihydrotetraazapentacenes, products such as obtained and uses thereof
申请人:Université de la Méditerranée - Aix-Marseille II
公开号:EP2078720A1
公开(公告)日:2009-07-15
The present invention relates to a method for the preparation of compounds having the following formula (I):
in which:
R1, R2, R3, and R4 represent, independently from each other, in particular H or an alkyl group having from 1 to 20 carbon atoms,
said method comprising the reaction of a compound of formula (II)
R1 and R2 being as defined above,
with a compound having the following formula (III):
R3 and R4 being as defined above,
in the presence of a catalytic amount of an acid.
[EN] NOVEL METHOD FOR THE PREPARATION OF DERIVATIVES OF DIHYDROTETRAAZAPENTACENES, PRODUCTS SUCH AS OBTAINED, AND USES THEREOF<br/>[FR] NOUVEAU PROCÉDÉ DE PRÉPARATION DE DÉRIVÉS DE DIHYDRO-TÉTRAAZA-PENTACÈNES, LES PRODUITS AINSI OBTENUS, ET LEURS UTILISATIONS
申请人:UNIV AIX MARSEILLE II
公开号:WO2009083532A2
公开(公告)日:2009-07-09
The present invention relates to a method for the preparation of compounds having the following formula (I) in which: R1, R2, R3, and R4 represent, independently from each other, in particular H or an alkyl group having from 1 to 20 carbon atoms, said method comprising the reaction of a compound of formula (II) R1 and R2 being as defined above, with a compound having the following formula (III): R3 and R4 being as defined above, in the presence of a catalytic amount of an acid.
Efficient Synthesis of Substituted Dihydrotetraazapentacenes
作者:Claire Seillan、Hugues Brisset、Olivier Siri
DOI:10.1021/ol801509v
日期:2008.9.18
We describe a versatile and very efficient synthesis of previously unknown substituted 5,14-dihydro-5,7,12,14-tetraazapentacenes (DHTAPs). A structural study by NMR spectroscopy showed that the conjugated pi-system of the pentacyclic skeleton rearranges depending on the electronic effect of the substituent(s).