Synlett 2005(14): 2199-2203  
DOI: 10.1055/s-2005-872245
LETTER
© Georg Thieme Verlag Stuttgart · New York

Synthesis of Functionalized Unsymmetrical Thiophene Diols and Their Use in the Synthesis of cis-21-Monothia- and cis-21,23-Dithiaporphyrin Building Blocks with Two Different Functional Groups

Sokkalingam Punidha, Mangalampalli Ravikanth*
Department of Chemistry, Indian Institute of Technology, Powai, Mumbai 400076, India
Fax: +91(22)25767152; e-Mail: ravikanth@chem.iitb.ac.in;
Further Information

Publication History

Received 16 May 2005
Publication Date:
26 July 2005 (online)

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Abstract

A series of functionalized unsymmetrical thiophene ­diols were synthesized and used for the synthesis of cis-21-monothia and cis-21,23-dithiaporphyrin building blocks having two ­different functional groups at meso-positions. To show the use of the cis-thiaporphyrin building blocks with two different functional groups, a porphyrin trimer comprised of N4, N3S and N2S2 por­phyrin sub-units was synthesized by using both covalent and non-covalent interactions.