Stereochemistry of phenyldiimide addition to phenylacetylene
β Scribed by Richard Fuchs
- Publisher
- Elsevier Science
- Year
- 1967
- Tongue
- French
- Weight
- 83 KB
- Volume
- 8
- Category
- Article
- ISSN
- 0040-4039
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β¦ Synopsis
Recent studies of l.he hydrazine oxidation product diimide (H-N=N-H) (1) have demonstrated a one-step a-hydrogenat:.on of carbon-carbon double and triple bonds. Aryldiimides, which are believed to be formed by i.he oxidation of arylhydrazines and by the ethanolysis of N-phenyl-N'carbethoxydiimide and N-ptienyl-N'-benzoyldiimide (2), decompose to radicals which arylate aromatics, attack solvent, initiate the polymerization of acrylonitrile, and add to the C=C bond of fumaric acid (2). Since diimide does not attack the aromatic ring it is reasonable to assume
π SIMILAR VOLUMES
Enantioselective addition of phenylacetylene to various aldehydes was studied in the presence of inexpensive and commercially available Cinchona alkaloids. A maximum of 85% ee was obtained using cinchonidine in the presence of Ti(O i Pr) 4 .
## Abstract The stereochemical distribution of the addition products of DCl to acetylene was studied by proton magnetic resonance. The NMR parameters of __cis__ and __trans__ isomers of vinylchlorideβΞ²__d__~1~ are reported.