Urea cyclisation reaction studies

…, J Dessolin, C Trabaud, M Camplo…

Index: Niddam, Valerie; Medou, Martial; Dessolin, Jean; Trabaud, Carole; Camplo, Michel; Kraus, Jean-Louis Journal of Heterocyclic Chemistry, 1997 , vol. 34, # 3 p. 829 - 833

Full Text: HTML

Citation Number: 0

Abstract

832 V. Niddam, M. Medou, J . Dessolin, C. Trabaud, M. Camplo and J .-L. Kraus Vol. 34 ature, water was added and the organic layers were extracted with toluene (3 x 5 ml), dried over anhydrous sodium sulfate and concentrated under reduced pressure. The residue was purified by preparative layer chromatography 1 mm (eluent: toluene) to obtain 5a, 6 mg (16%); Rf = 0.38 (toluene/ethyl acetate: 97/3); 1H nmr (deuteriochloroform): 5 1.65 (s, 2H, OH), 4.20 and ...

Related Articles:

Cleavage and some modifications of the 7-amide group of the cephamycins

[Shiozaki, Masao; Ishida, Noboru; Iino, Kimio; Hiraoka, Tetsuo Tetrahedron, 1980 , vol. 36, p. 2735 - 2740]

Manganese-catalyzed synthesis of hydantoin derivatives from terminal alkynes and isocyanates

[Kuninobu, Yoichiro; Kikuchi, Kou; Takai, Kazuhiko Chemistry Letters, 2008 , vol. 37, # 7 p. 740 - 741]

Chemistry of the adducts of N, N'-diphenylformamidine with oxalyl chloride and phosgene

[Barsa, E. A.; Richter, R. Journal of Organic Chemistry, 1986 , vol. 51, # 23 p. 4483 - 4485]

Reaction of oxalyl chloride and alkyloxalyl chlorides with isocyanates and isothiocyanates

[Richter, R.; Stuber, F. A.; Tucker, B. Journal of Organic Chemistry, 1984 , vol. 49, # 20 p. 3675 - 3681]

Chemistry of the adducts of N, N'-diphenylformamidine with oxalyl chloride and phosgene

[Barsa, E. A.; Richter, R. Journal of Organic Chemistry, 1986 , vol. 51, # 23 p. 4483 - 4485]

More Articles...