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Cyclopentanone synthesis by intramolecular carbon-hydrogen insertion of diazo ketones. A diterpene-to-steroid skeleton conversion

✍ Scribed by Wenkert, Ernest; Davis, Linda L.; Mylari, Banavara L.; Solomon, Mary F.; Da Silva, Roberto R.; Shulman, Sol; Warnet, Ronald J.; Ceccherelli, Paolo; Curini, Massimo; Pellicciari, Roberto

Book ID: 120357469
Publisher: American Chemical Society
Year: 1982
Tongue: English
Weight: 869 KB
Volume: 47
Category: Article
ISSN: 0022-3263
DOI: 10.1021/jo00138a008

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## Dirhodium(II)-Catalyzed Intramolecular Carbon-Hydrogen Insertion Reaction of α-Diazo Ketones: Stereoselective Synthesis of 2,3-cis-2-Alkyl-5-oxo-3-silyloxycyclopentanecarboxylates. -In continuation of earlier studies the title reaction leading to cyclopentanones such as (VII) and (VIII) is inv