Abstract
Intramolecular carbonyl ene reactions of highly activated enophiles can be catalysed by H-bonding thio-ureas to give tertiary alcohols in high yields without extensive isomerisation side products. An asymmetric variant of this reaction was realised using a chiral thiourea but was limited by low enantioselectivity (up to 33% e. e.) and low turnover frequencies.
Original language | English |
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Article number | 24 |
Number of pages | 4 |
Journal | Beilstein Journal of Organic Chemistry |
Volume | 3 |
DOIs | |
Publication status | Published - 14 Sept 2007 |
Keywords
- ASYMMETRIC CATALYSIS
- COMPLEXES
- ACIDS