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Phosphaferrocene Analogues of Calixpyrroles

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posted on 2011-07-11, 00:00 authored by Rongqiang Tian, François Mathey
Two new heterocalixpyrroles are described in which two opposite pyrrole rings are replaced by either two phosphaferrocene or one phosphaferrocene and one thiophene unit to give P–N–P–N or P–N–S–N macrocycles.

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