Pyrolytic S.RAR.N methyl migration of N,N-dimethyl-N'-(4-methyl-2-thiazolyl)-S-methylisothiourea.
نویسندگان
چکیده
منابع مشابه
NITROIMIDAZOLES IV [I]. SYNTHESIS OF 3,s-DICARBO ALKOXY-2,6-DIMETHYL-4-(1 -METHYL-5- NITRO-2-1MIDAZOLYL)-1,4-DIHYDROPYRIDIANNE D 3,5-DICARBOALKOXY- 2,6-DIMETHYL-4(-2 -S UBSTI - TUTED-4-THIAZOLYL)-l , 4- DIHYDROPYRIDINE
Different procedures for the syntheses of the title compounds were investigated. The best method for the preparation of the title compounds were the reaction of the readily available 2-formyL-1-methyl-5-nitroimidazole2- substituted-4-formylthiazoles with alkyl acetoacetate and alkyl aminocrotonate in boiling alcohol.
متن کاملnitroimidazoles iv [i]. synthesis of 3,s-dicarbo alkoxy-2,6-dimethyl-4-(1 -methyl-5- nitro-2-1midazolyl)-1,4-dihydropyridianne d 3,5-dicarboalkoxy- 2,6-dimethyl-4(-2 -s ubsti - tuted-4-thiazolyl)-l , 4- dihydropyridine
different procedures for the syntheses of the title compounds were investigated. the best method for the preparation of the title compounds were the reaction of the readily available 2-formyl-1-methyl-5-nitroimidazole2- substituted-4-formylthiazoles with alkyl acetoacetate and alkyl aminocrotonate in boiling alcohol.
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In the title compound, C(15)H(17)NO(2)S, the dihedral angle between the aromatic rings is 14.47 (8)°. The mol-ecule is bent at the N atom, with a C-SO2-NH-C torsion angle of 79.06 (13)°. In the crystal structure, the sulfonamide groups are hydrogen bonded via N-H⋯O links, forming chains of mol-ecules along the crystallographic b axis. π-π inter-actions [centroid-centroid distance = 3.81 (3) Å] ...
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The six-membered boronate ester ring of the title compound, C(13)H(16)BNO(6), adopts an envelope conformation with the C atom bearing the dimethyl substituents at the flap. The O-B-C-C torsion angles between the boronate group and the benzene ring are 72.5 (2) and 81.0 (2)°. The 4-nitro-benzoate unit adopts a slightly twisted conformation, with dihedral angles between the benzene ring and the n...
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Two series (a and b) of N- substituted heteroaromatic compounds related to clotrimazole were synthesized. Imidazole ring of the clotrimazole was replaced by 2-methylimidazole in series a, and by 2-methyl-4-nitroimidazole in series b. O-cholortrityl moiety of clotrimazole was also replaced by trityl, mono or dimethoxy trityl. Chemical structures...
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ژورنال
عنوان ژورنال: Chemical and Pharmaceutical Bulletin
سال: 1984
ISSN: 0009-2363,1347-5223
DOI: 10.1248/cpb.32.2224