Number | Date | Country | Kind |
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3635820 | Oct 1986 | DEX |
Entry |
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R. A. Berger and Eugene LeGoff; "The Synthesis of A 22.pi.-Electron Tetrapyrrolic Macrocycle, [1,3,1,3,] Platyrin"; Pergamon Press Ltd. 1978; pp. 4225-4228 Tetrahedron Letters, No. 44. |
E. LeGoff, and O. G. Weaver; "Synthesis of a [1,5,1,5,] Platyrin, a 26.pi.-Electron Tetrapyrrolic Annulene"; J. Org. Chem. 1987, 52, 710-711. |