期刊
TETRAHEDRON LETTERS
卷 49, 期 40, 页码 5793-5795出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.tetlet.2008.07.133
关键词
sulfonated Halterman porphyrin; ruthenium porphyrin; iron porphyrin; asymmetric cyclopropanation; chiral water-soluble porphyrin
资金
- Girex company
The reaction of optically active Halterman porphyrin with sulfuric acid (95%) provided the expected water-soluble para-tetrasulfonated porphyrin in 82% yield. The metalloporphyrin complexes were prepared by metal insertion (iron) or direct sulfonation of the chiral ruthenium porphyrin. The asymmetric addition of diazoacetate to styrene to give optically active trans cyclopropyl ester (ee up to 86%) was carried out in water by using chiral iron or ruthenium porphyrins with a possible reuse due to the high solubility and stability in aqueous solution. (C) 2008 Elsevier Ltd. All rights reserved.
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