## Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 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
ChemInform Abstract: Asymmetric Methoxyselenenylation of Alkenes with Chiral Ferrocenylselenium Reagents.
β Scribed by S. FUKUZAWA; K. TAKAHASHI; H. KATO; H. YAMAZAKI
- Publisher
- John Wiley and Sons
- Year
- 2010
- Weight
- 41 KB
- Volume
- 29
- Category
- Article
- ISSN
- 0931-7597
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β¦ Synopsis
1998 organo-selenium compounds, isocyclic C derivatives organo-selenium compounds, isocyclic C derivatives S 0134 15 -187 Asymmetric Methoxyselenenylation of Alkenes with Chiral Ferrocenylselenium Reagents.
-Best results are observed using the ferrocenylselenium compound shown in the scheme. From cycloalkenes trans adducts are obtained with good selectivity, while from cis-2-butene the erythro adduct is formed with moderate selectivity. trans-2-Butene gives the threo product with high selectivity (exact configuration is not determined). The reaction with silyl enol ethers yields Ξ±-seleno ketones with moderate to excellent diastereoselectivity. In the presence of the chiral diselenide and (NH 4 ) 2 S 2 O 8 alkenes like (XI) are converted into enols such as (XII) in low optical yields.
π SIMILAR VOLUMES
## Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 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