✦ LIBER ✦

NMR enantiodiscrimination by pentafluorophenylcarbamoyl derivatives of quinine: C10 versus C9derivatization

✍ Scribed by Gloria Uccello-Barretta; Letizia Vanni; Margherita Giulia Berni; Federica Balzano

Publisher: John Wiley and Sons
Year: 2011
Tongue: English
Weight: 419 KB
Volume: 23
Category: Article
ISSN: 0899-0042
DOI: 10.1002/chir.20945

No coin nor oath required. For personal study only.

📜 SIMILAR VOLUMES

NMR Enantiodiscrimination Phenomena by Q

NMR Enantiodiscrimination Phenomena by Quinine C9-Carbamates

✍ Gloria Uccello-Barretta; Letizia Vanni; Federica Balzano 📂 Article 📅 2009 🏛 John Wiley and Sons 🌐 English ⚖ 527 KB

## Abstract Several __C__^9^‐carbamoyl derivatives of quinine have been prepared and compared as chiral solvating agents in NMR enantiodiscrimination experiments of amino acid derivatives. The origin of the enantiodiscrimination phenomena was identified by NMR conformational analysis of the chiral

trans-[PtCl2(Am)(C2H4)] and [PtCl3(C2H4)

trans-[PtCl2(Am)(C2H4)] and [PtCl3(C2H4)]−[AmH]+, Containing Binaphthyl Secondary Amines − Efficient Chiral Derivatizing Agents for the Enantiodiscrimination of Chiral Olefins by 195Pt NMR Spectroscopy

✍ Gloria Uccello-Barretta; Raffaella Bernardini; Federica Balzano; Francesca Ventu 📂 Article 📅 2001 🏛 John Wiley and Sons 🌐 English ⚖ 263 KB 👁 1 views

Dimethoxy aromatic compounds. IV.—determ

Dimethoxy aromatic compounds. IV.—determination of stereochemistry of 2,3,6,7-tetraalkoxy-9,10-dihalomethyl-9,10-dihydroanthracenes by 13C NMR chemical shifts

✍ Liliana Lamartina; Leopoldo Ceraulo; Maria C. Natoli 📂 Article 📅 1987 🏛 John Wiley and Sons 🌐 English ⚖ 490 KB

Structural examination of 1-vinylphenoth

Structural examination of 1-vinylphenothiazine, 10-vinylphenothiazine S-oxide, 10-vinylcarbazole, 9-vinylcarbazole, and 9-vinyl-β-carboline by1H and13C NMR

✍ A. V. Afonin; G. N. Kurov; L. L. Dmitriev; Z. V. Stepanov; L. V. Baikalov 📂 Article 📅 1992 🏛 Springer US 🌐 English ⚖ 499 KB

Complete assignment of the 13C NMR spect

Complete assignment of the 13C NMR spectra of 4,4-dimethylanthracene-1,9,10(4H)-trione and the regioisomeric monomethyl derivatives

✍ Ramiro Araya-Maturana; Wilson Cardona; Tomás Delgado-Castro; Carolina Jullian 📂 Article 📅 2000 🏛 John Wiley and Sons 🌐 English ⚖ 42 KB 👁 1 views

The 1 H and 13 C NMR spectra of a set of structurally related tricyclic quinones consisting of 4,4-dimethylanthracene-1,9,10(4H)-trione (1), 4,4,6,7-tetramethylanthracene-1,9,10(4H)-trione (2) and the regioisomers 4,4,5-(3), 4,4,6-(4), 4,4,7-(5) and 4,4,8trimethylanthracene-1,9,10(4H)-trione (6) wer

13C, 13C coupling constants in anthracen

13C, 13C coupling constants in anthracene, 9,10-dihydroanthracene and phthalic acid derivatives. Determination of signs by the symmetrical double labelling (SDL) method V

✍ P. E. Hansen; A. Berg 📂 Article 📅 1979 🏛 John Wiley and Sons 🌐 English ⚖ 543 KB

## Abstract Carbon‐13, carbon‐13 one‐bound and long‐range coupling constants are determined for anthracene and 9,10‐dihydroanthracene labelled in the 9,10‐positions, and for thiophthalic anhydride and phthalimide, labelled in both carbonyl groups. Relative signs are determined by the SDL method. Si