Mesyl Derivatives of Hydrazine

Abstract

Monomesylhydrazide, 1-acetyl,2-me~~lhydrazide, and sym-dimesylhydrazide were obtained by means of the Schotten-Baumann reaction. For comparison with these compounds the hydrazinium dimesylate, hydrazinium monomesylate, monomesylhydrazide n~esylate, and monoacetylhydrazide mesylate were prepared. The preparation of dirne~~ldiimide by the action of metallic sodium on N,N-dichloromesyla~nide was attempted.

Synthesis, characterization and antimicrobial activity of salicylaldehyde benzenesulfonylhydrazone (Hsalbsmh)and its Nickel(II), Palladium(II), Platinum(II), Copper(II), Cobalt(II) complexes

“…Furthermore, low cost and low toxicity are their principle advantages [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15].…”

Synthesis of Sulfonated 5‐Aminopyrazoles by I2/Benzoyl Peroxide‐Mediated Tandem Reaction

“…Sulfonyl hydrazines were prepared according to the literature. [15][16][17] General procedure for the synthesis of 3: To a solution of 1 (0.2 mmol) and 2 (0.6 mmol) in CH 2 ClCH 2 Cl (2 mL), I 2 (0.04 mmol, 0.0101 g) and BPO (0.4 mmol, 0.0969 g) was added. The resulting mixture was stirred for 4 hrs at 70 8C.…”

Synthesis of Potential Selective COX‐2 Enzyme Inhibitors Derived from Ethyl Ester of 2‐Isothiocyanato‐5‐phenyl‐3‐thiophenecarboxylic Acid.

“…After cooling to room temperature, the resulting solid was collected, washed firstly with ethanol and then with water, dried and crystallized from ethanol/dioxane to give 9 as yellow microcrystals; yield 60%; mp 252-254°dec. ; ir: 1680 (C=O) cm -1 ; 1 3-Amino-2-(methylthio)-6-phenylthieno[2,3-d]pyrimidin-4(3H)one (10).…”

“…for C 14 H 15 N 3 O 2 S 2 : C, 52.33; H, 4.67; N, 13.08; S, 19.93. Found: C, 52.50; H, 4.75; N, 12.95; S, 19.60.To a stirred solution of methanesulphonyl hydrazide[10] (0.8 g, 98% , 8.15 mmoles) in dichloromethane (25 ml) isothiocyanate 2 (2.10 g, 7.62 mmoles) in dichloromethane (50 ml) was added dropwise at room temperature. After the addition was complete, the mixture was stirred at room temperature for 2 hours.…”