Published in
Elsevier, Tetrahedron Letters, 22(40), p. 4165-4168
DOI: 10.1016/s0040-4039(99)00745-5
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Synthesis of directly meso-meso linked bisporphyrins using organolithium reagents
Journal article published in 1999 by
Mathias O. Senge 
,
Xiangdong Feng
,
Xiangdong Feng
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Abstract
Reaction of easily available 5,15-disubstituted free base porphyrins with organolithium reagents under anhydrous conditions affords 5,10,15-trisubstituted porphyrin anions that, upon oxidation with DDQ (2,3-dichloro-5,6-dicyano-p-quinone), give directly linked (5,5′) bisporphyrins in good yields. This method allows the facile preparation of bisporphyrins with mixed meso substituent pattern.