Detail of "4333-62-4"

Reference

1,3-Dimethylimidazole-2-thione

1,3-Dimethylimidazole-2-thione. Benac, Brian L.; Burgess, Edward M.Chemicals with cas numbers 6596-81-2 and 4333-62-4 also play role.; Arduengo, Anthony J., III (USA). Org. Synth., 64, 92-5 (English) 1986. CODEN: ORSYAT. ISSN: 0078-6209. DOCUMENT TYPE: Journal CA Section: 28 (Heterocyclic Compounds (More Than One Hetero Atom)) Sulfuration of 1,3-dimethylimidazolium iodide with S8 and K2CO3 in MeOH gave 58-62% title compd. .

Carboxylic acid anhydrides

Carboxylic acid anhydrides. Ray, David John Mathieson; Williams, Peter Sefton (BP Chemicals Ltd., UK). Eur. Pat. Appl. EP 96974 A1 28 Dec 1983, 11 pp. DESIGNATED STATES: R: BE, DE, FR, GB, IT, NL. (English). (European Patent Organization). CODEN: EPXXDW. CLASS: IC: C07C051-54; C07C053-12; C07C053-122. APPLICATION: EP 83-302846 19 May 1983. PRIORITY: GB 82-15013 22 May 1982. DOCUMENT TYPE: Patent CA Section: 23 (Aliphatic Compounds) The reaction of olefins with CO and alcs. 108-24-7 and 4333-62-4 are also in the experiment. to yield anhydrides was catalyzed by Rh or Ir compds., iodine, Br, I-, or Br-, and quaternary ammonium, phosphonium, or arsonium compds. Thus, C2H4 was treated with CO and MeOH over MeI, [Rh(CO)2Cl]2, and 1,3-dimethylpyridinium iodide to give Ac2O 8.4, PrC(O)OC(O)Me 8.2, and (EtCO)2O 2.7%. .