R,R)-Di-m-oxo Ti(salen) 4 was found to serve as an efficient catalyst for asymmetric oxidation of various sulfides with hydrogen peroxide. For example, oxidation of methyl phenyl sulfide by using 4 as the catalyst in the presence of a ureaβ’H 2 O 2 adduct showed high enantioselectivity of 94% ee. The
Mechanistic consideration of Ti(salen)-catalyzed asymmetric sulfoxidation
β Scribed by Bunnai Saito; Tsutomu Katsuki
- Book ID
- 104231837
- Publisher
- Elsevier Science
- Year
- 2001
- Tongue
- French
- Weight
- 71 KB
- Volume
- 42
- Category
- Article
- ISSN
- 0040-4039
No coin nor oath required. For personal study only.
β¦ Synopsis
Asymmetric sulfoxidation using di-m-oxo Ti(salen) complex 2 as the catalyst was revealed to proceed through C 2 -symmetric Ti(salen) complex 6 and peroxo Ti(salen) complex 4 in sequence on the basis of MS and NMR studies of the complexes and the observation of positive non-linear effect.
π SIMILAR VOLUMES
## Abstract New bifunctional __N__βoxide salenβTi^IV^ complexes and a pyrrolidine salenβTi^IV^ complex in combination with achiral __N__βoxide were developed and applied to the asymmetric addition of trimethylsilyl cyanide to aldehydes. Notably, both enantiomers of trimethylsilyl ethers of cyanohyd
## Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a βFull Textβ option. The original article is trackable v