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The role of thiourea ss-dioxide in the reduction of steroidal ketones

✍ Scribed by R. Caputo; L. Mangoni; P. Monaco; G. Palumbo; L. Previtera

Book ID
104213986
Publisher
Elsevier Science
Year
1975
Tongue
French
Weight
132 KB
Volume
16
Category
Article
ISSN
0040-4039

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✦ Synopsis

Thiourea SS-dioxide' (TDO), long known to be a powerful reducing agent for metallic ions, has been also reported2 to be a reducing agent of aromatic nitro, azoxy. axe and hydrazo compounds as well as of quinones. but not capable of reducing ketones. However. recently Rakagawa and Minami

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Chiral thiourea as ligand for the asymme
Chiral thiourea as ligand for the asymmetric reduction of prochiral ketones
✍ FranΓ§ois Touchard; Patrick Gamez; Fabienne Fache; Marc Lemaire πŸ“‚ Article πŸ“… 1997 πŸ› Elsevier Science 🌐 French βš– 265 KB

The catalytic enantioselective reduction of prochiral ketones using a chiral thiourea as ligand is reported. Several metallic precursors were tested. e.e.'s up to 94% are obtained with a ruthenium complex.