Tetrahedron Letters

The breaking and mending of porphyrins: reductive coupling of secochlorin bisaldehydes

J Akhigbe, LP Samankumara, C Brückner

文献索引：Akhigbe, Joshua; Samankumara, Lalith P.; Brueckner, Christian Tetrahedron Letters, 2012 , vol. 53, # 27 p. 3524 - 3526

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被引用次数: 8

摘要

The reaction of free base or Ni (II) complex secochlorin bisaldehydes 4H2 and 4Ni regenerates the ultimate starting material of the bisaldehydes, meso-tetraphenylporphyrin 2H2 and 2Ni, respectively. Depending on the reaction conditions employed (hydrazine hydrate in pyridine at reflux or hydrazine hydrate activated with sulfur in the presence of aqueous NaOH at ambient temperature), either porphyrin 2H2 is formed together with ...