𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Synthese d'Acide Benzisoxazole-1, 2 Acetique-3 (14C-α) et (14c-β)

✍ Scribed by P. Thourel; J. P. Noel; J. P. Beaucourt


Publisher
John Wiley and Sons
Year
1988
Tongue
French
Weight
355 KB
Volume
25
Category
Article
ISSN
0022-2135

No coin nor oath required. For personal study only.

✦ Synopsis


Service der Ilol&culer )I.rqu&er CXN-SACLAY 91191 GIF-SUR-WETTE CEDKX M I SIII+UBY I The preparations of 1.~-bcnsiroxaso~e-3-.c.tic acid labelled with 14C in porition a o r B of the ride chain are dercribed. a-14C acid war obtained from 4-hydroxy cormrarin [3-14C] via Prier rearrangewnt of phenyl acetate [methyl-B -l4C acid war ryntherized from 4-hydroxy comarin [Z-14C] obtained from "C-diethy1 carbonate. Labelled poritionr were determined by purr spectrometry and were in agreem8nt with the propored reaction rchew . 14 C].


📜 SIMILAR VOLUMES


Synthese d'un diuretique marque au carbo
✍ M. Herbert; L. Pichat 📂 Article 📅 1976 🏛 John Wiley and Sons 🌐 French ⚖ 224 KB

## Abstract 2‐Thenoic acid (^14^C = 0) 1 is prepared in 75 % radioactive yield by carbonation with ^14^CO~2~ of 2‐thienyL‐magnesium bromide. Boiling of 1 with oxalyl chloride gives rise to 2‐thenoylchloride (^14^CO) which is not isolated and is condensed with 2,3 dichLoroanisoLe under FrieLdeL‐Graf

Synthesis of disodium D (-)-6-(2-phenyl-
✍ Nobuyoshi Haayshi; Shinji Kato; Tadashi Toga; Koji Nishijima; Tadashi Hanaoka; H 📂 Article 📅 1975 🏛 John Wiley and Sons 🌐 French ⚖ 305 KB

## Abstract The syntheses of disodium 6‐(2‐phenyl‐2‐sulfoacetamido‐1‐^14^C) peniaillanate (IV) and 6‐(2‐isobutyl‐β,γ‐ ^3^H~2~‐sulfo‐2‐phenyl‐acetamido‐1‐^14^C) penicillanic acid (XII) are described. The optically active D(‐)‐IV was obtained by the fractional crystallization of diastereoisomeric mix

Synthese d'un nouvel anorexigene marque
✍ L. Pichat; J. Tostain 📂 Article 📅 1979 🏛 John Wiley and Sons 🌐 French ⚖ 363 KB

Carbonatation o f 3-trifluoromethylthio phenylmagnesiwn bromide 2 w i t h 14C02 leads t o (carboxyl-14C) 3-trifluoromethylthio benzofc acid 3 . Reduction of t h e l a t t e r w i t h borane-methyl s u l f i d e compZex (CH312S-BH3 i n presence of trimethyl borate gives r i s e t o 3-trifluoromethylt