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D2-Symmetric Chiroporphyrins Derived from (1R)-cis-Hemicaronaldehydic Acid: Preparation and Spectral Characterization

✍ Scribed by Céline Pérollier; Marinella Mazzanti; Jean-Pierre Simonato; Franck Launay; René Ramasseul; Jean-Claude Marchon


Publisher
John Wiley and Sons
Year
2000
Tongue
English
Weight
358 KB
Volume
2000
Category
Article
ISSN
1434-193X

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✦ Synopsis


Esters, N,N-disubstituted amides, and a N-acylurea derived from the enantiopure industrial intermediate (1R)-cis-hemicaronaldehydic acid (or biocartol) are convenient synthons for the preparation of a series of chiroporphyrins by condensation with pyrrole. These chiral meso-tetracyclopropylporphyrins are obtained exclusively as the D 2 -symmetric α,β,α,β atropisomer, generally in low to moderate yields (2-20%), and in the urea case in excellent yield (60%). Hydro-


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ChemInform Abstract: D2-Symmetric Chirop
✍ Celine Perollier; Marinella Mazzanti; Jean-Pierre Simonato; Franck Launay; Rene 📂 Article 📅 2010 🏛 John Wiley and Sons ⚖ 27 KB

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