𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Reactions of phosphoric anhydride with acyclic amides. Synthesis of amidines and imides

✍ Scribed by Eva A. Oberlander; John C. Tebby

Publisher
John Wiley and Sons
Year
1998
Tongue
English
Weight
140 KB
Volume
9
Category
Article
ISSN
1042-7163

No coin nor oath required. For personal study only.

✦ Synopsis

Acyclic secondary amides such as benzanilides 1a-g, acetanilides 2a-d, and benzamide 1h undergo selfcondensation in the presence of phosphoric anhydride to produce, in one step, N-substituted aroyl benzamidines 3a-g, acyl acetamidines 4a-d, and imide 5, respectively. Mechanistic evidence is presented for nucleophilic attack by the iminol tautomers on the O-phosphorylated amides to give amidines and on the N-phosphorylated imidates to give imides.

πŸ“œ SIMILAR VOLUMES

Synthesis and characterization of poly(a
Synthesis and characterization of poly(aryl amide imide)s derived from diphenyltrimellitic anhydride
✍ Hai Bin Zheng; Yu Qi; Zhi Yuan Wang; Xi Gao Jian πŸ“‚ Article πŸ“… 1999 πŸ› John Wiley and Sons 🌐 English βš– 133 KB πŸ‘ 2 views

The synthesis and characterization of a series of novel poly(aryl amide imide)s based on diphenyltrimellitic anhydride are described. The poly(aryl amide imide)s, having inherent viscosities of 0.39 -1.43 dL/g in N-methyl-2-pyrrolidinone at 30Β°C, were prepared by polymerization with aromatic diamine

Reaction of Bicyclic Amide Acetals with
Reaction of Bicyclic Amide Acetals with Carboxylic Acids and their Anhydrides
✍ Dr. R. Feinauer πŸ“‚ Article πŸ“… 1967 πŸ› John Wiley and Sons 🌐 English βš– 218 KB πŸ‘ 2 views

The reactivity of the aziridinium cation towards the hydroxyl group of alcohols and phenols makes possible a simple synthesis of 2-alkoxyethylamines 111. If the reaction is carried out with a-hydroxy esters ( I ) and aziridinium tetrafluoroborate (2), one obtains first the salts (3) and then, by lo