Dehalogenation of α -haloketones and vic-dibromides with nickel boride
✍ Scribed by JC Sarma; M Borbaruah; R.P. Sharma
- Publisher
- Elsevier Science
- Year
- 1985
- Tongue
- French
- Weight
- 218 KB
- Volume
- 26
- Category
- Article
- ISSN
- 0040-4039
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✦ Synopsis
I @-Haloketones and vie-dibromides are converted to the corresponding ketones and alkenes respectively with nickel boride generated in situ from sodium borohydride and nickel chloride. During the course of our studies on in situ generated nickel boridel, it was observed that a carbonyl group remains unaftected under appropriate reaction conditions. 2 It was therefore argued that since reductive removal or a halogen in d.-haloketones can sometimes be achieved through hyorogenation3, nickel boride whose generation from sodium borohydride and nickel chloride is accompanied by a sufticient amount of hydrogen evolution 4 ,
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## 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 “Full Text” option. The original article is trackable v
The active nickel complex generated in situ by reduction of NiBr2(PPh3)2 with zinc in the presence of Et4NI is a useful reagent for the dehalogenative coupling of phenacyl halides to 1,4-diaryl-1,4-diketones and for the dechlorination of 3,4-dichlorobicyclo[4.2.0]octane-2,5-diones to bicyclo[4.2.0]o