𝔖 Bobbio Scriptorium
✦   LIBER   ✦

The structure of trisformamidomethane in dimethyl sulphoxide-d6, hexamethylphos-phortriamide and trifluoroacetic acid

✍ Scribed by W. L. F. Armarego; Toshihiko Kobayashi


Publisher
John Wiley and Sons
Year
1970
Tongue
English
Weight
294 KB
Volume
2
Category
Article
ISSN
0749-1581

No coin nor oath required. For personal study only.

✦ Synopsis


Abstract

The PMR spectrum of trisformamidomethane in dimethyl sulphoxide‐d~6~ and hexamethyl‐phosphortriamide has been explained by postulating four major structures in solution: two rotamers and two structural isomers, all of which are stabilized by intramolecular hydrogen bonding to form six membered rings. The spectrum in trifluoroacetic acid is also described.


📜 SIMILAR VOLUMES


Disorder as adaptation of the crystal st
✍ Kabul K. Makhkamov; Bakhtiyar T. Ibragimov; Edwin Weber; Kayrat M. Beketov 📂 Article 📅 1999 🏛 John Wiley and Sons 🌐 English ⚖ 123 KB 👁 2 views

The complex formation of 1,1'-binaphthyl-2,2'-dicarboxylic acid (BNDA) with dimethyl sulphoxide (DMSO) at different temperatures was investigated. The crystal structures of the aand b-form [triclinic, P1, a = 9.614(2), b = 11.743(2), c = 12.029(2) A ˚, a = 99.35(3), b = 93.58(3), = 110.51(3)°, V = 1

Solvent-induced shifts in NMR spectrosco
✍ Hirday N. Jha; Virinder S. Parmar 📂 Article 📅 1983 🏛 Elsevier Science 🌐 English ⚖ 233 KB

We have observed that the benzene-induced solvent shifts ofcertain methoxyl groups in the NMR spectra of isoflavones are appreciably changed by the addition of a small amount of trifluoroacetic acid to the solution of the isoflavones in a 1: 1 mixture of chloroform and benzene. The methoxyl group at

ChemInform Abstract: Synthesis of 5-Aryl
✍ Malek Taher Maghsoodlou; Ghasem Marandi; Nourallah Hazeri; Sayyed Mostafa Habibi 📂 Article 📅 2011 🏛 John Wiley and Sons ⚖ 24 KB 👁 1 views

## Abstract The reaction affords the products with excellent yields under mild conditions and does not require any prior activation.