1) We have been Investigating new types of reactions with sodium borohydrlde, the reagent, a combination of sodium borohydrlde and pyrldlne, showed a very Interesting reaction. The reduction of amides with this ed ra)ig) to give the corresponding amlnes and nltrllea by authors (S.Y. and Y.K.). In th
Orientation in the reaction of phenyllithium with 3-substituted pyridines
β Scribed by R.A. Abramovitch; A.D. Notation; Giam Choo Seng
- Publisher
- Elsevier Science
- Year
- 1959
- Tongue
- French
- Weight
- 152 KB
- Volume
- 1
- Category
- Article
- ISSN
- 0040-4039
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β¦ Synopsis
Reaeived 4 June 1959) A STKDY of the addition of phenyllithimn to 3-substituted pyridinez m.z undertaken to detemine the orientatfon of the entering phenyl group, . While this work was in progrees W&leg et al*' reported that the reaction of 3-phenylpyridine I(R -C H 65 ) with phenyllithium II wag aelective in giving 2,+iiphenylpyridine III(R -C&) exolusively. The formation of 2,3_diph~ipyridine IV(R = C H 65 f, which %iley et al, regard az less probable, ma not observed.
The addition of other nucleophilic reagent8 such az aodzmide 2*3 and butyl-
π SIMILAR VOLUMES
The reaction rates of 2-chloro-3,5-dinitropyridine 1 with a series of arylthiolates 2a-h in methanol have been measured at 25Β°C. The products are the corresponding 2-thioaryl-3,5-dinitropyridine 3a-h. Good Hammett correlation with value Οͺ1.19 was obtained suggesting an elimination-addition mechanism
Chemiluminexence of the CQ radical formed in the reaction of Ar( 'P) with the oriented CFaH was taken at five different wavelengths in the range from 500 to 700 nm for two reactant orientations with a reference orientation. A remarkable alignment dependence of the emission spectra was observed. Anal