Process For Preparing Porphyrin Derivatives, Such As Protoporphyrin (IX) And Synthesis Intermediates
申请人:Martin Pierre
公开号:US20080242857A1
公开(公告)日:2008-10-02
The present invention relates to a process for preparing a porphyrin of formula (I), optionally in the form of a salt with an alkali metal and/or in the form of a metal complex:
in which:
R and R′ are as defined in claim
1
,
comprising:
a step of condensation, in an acidic medium, between a dipyrromethane of formula (II):
in which R′b is as defined above for (I),
and a dipyrromethane of formula (III):
in which R″ is as defined in claim
1
, and also the compounds of formula (III).
Process For Preparing Prophyrin Derivatives, Such As Protoprophyrin (IX) And Synthesis Intermediates
申请人:Martin Pierre
公开号:US20110306761A1
公开(公告)日:2011-12-15
The present invention relates to a process for preparing a porphyrin of formula (I), optionally in the form of a salt with an alkali metal and/or in the form of a metal complex:
in which:
R and R′ are as defined in claim
1,
comprising:
a step of condensation, in an acidic medium, between a dipyrromethane of formula (II):
in which R′b is as defined above for (I),
and a dipyrromethane of formula (III):
in which R″ is as defined in claim
1
, and also the compounds of formula (III).
One-Pot Synthesis of Asymmetric Annulated Bis(pyrrole)s
作者:Deborah A. Smithen、T. Stanley Cameron、Alison Thompson
DOI:10.1021/ol202457n
日期:2011.11.4
Condensation of activated functionalized pyrroles with acetone results in asymmetricbis(pyrrole)s, formed via ring annulation. The methodology is somewhat general and can be applied to a variety of ketones, as well as to a range of pyrrolic substrates that do not bear electron-withdrawing groups directly adjacent to the pyrrole ring.