Acyl radical cyclisation onto pyrroles
โ Scribed by Steven M Allin; William R.S Barton; W.Russell Bowman; Tom McInally
- Publisher
- Elsevier Science
- Year
- 2001
- Tongue
- French
- Weight
- 73 KB
- Volume
- 42
- Category
- Article
- ISSN
- 0040-4039
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๐ SIMILAR VOLUMES
Iminyl radicals, generated by 5-exo cyclisation of alkyl, vinyl and aryl C-centred radicals onto nitriles, undergo b-scission (nitrile translocation), reduction or tandem cyclisation onto alkenes depending on the nature of the a-substituent. 5-exo Cyclisations of aryl radicals onto nitriles undergo
Amidyl radicals generated from tributylstannane mediated homolysis of O-benzoyl hydroxamic acid derivatives undergo 5-exo cyclisation to give mixtures of cis and trans pyrrolidinones. While the steric nature of the nitrogen substituents investigated had little effect on the diastereoselectivity of t
AbMract: A new protocol for the synthesis of [l, 2-a]-fused benzimidazoles and imidazoles has been developed using intramolecular homolytic aromatic substitution via a)-alkyl radicals generated from 1-(oJbenzeneselenylalkyl)-2-(benzenesulfenyl)-benzimidazoles and -2-(p-toluenesulfonyl)imidazoles.