88790-08-3

Upstream product

• 100-61-8 N-methylaniline 
• 630-19-3 pivalaldehyde 
• 90585-26-5 N-(2-iodophenyl)-N-methylacetamide 
• 57056-93-6 N-methyl-2-iodoaniline 
• 579-10-2 N-acetyl-N-methylaniline 
• 135190-94-2 3-Hydroxy-4,4-dimethyl-pentanoic acid (2-iodo-phenyl)-methyl-amide 

Relevant academic research and scientific papers

1,2-Asymmetric induction in radical reactions. Deuteration and allylation reactions of β-oxy-o-lodoanilides

Chiral radicals were generated by radical translocation reactions of β-oxy-o-iodoanilides and their asymmetric deuteration and allylation reactions were studied.

2-HALOVINYL ARYL SULFONES: NEW COUPLING REAGENTS FOR CARBOXAMIDE FORMATION

E-2-Chlorovinyl p-nitrophenyl sulfone 6 and 2-bromo-2-trifluoromethylvinyl phenyl sulfone 7a reacted with carboxylic acids in the presence of a molar equiv of Et3N affording the corresponding 2-acyloxyvinyl sulfones 8, 11, 17, 18, 22, 25, 28 and 29.The latter, on treatment with amines, gave amides 9, 13, 19, 23 and 26 and peptides 30 and 32.These reagents 6 and 7a were also used for the formation of N-methylanilides 13d, 13e, 19d, 23 and 26.Particularly, 6 was successfully used for synthesis of a macrocyclic lactam 23 involving a N-methylanilide moiety.The amidation reac tions proceeded under essentially neutral conditions.Therefore, base-sensitive β-hydroxycarboxy-N-methylanilides such as 26, whose structural unit was involved in maytansine 5, could be prepared by the present method.The reagent 6 was also effective for the preparation of peptides such as Val-N-MeVal derivatives (e.g.32), which were difficult to prepare by other methods.