Sulfamoyl chloride dimethyl

Contrary to earlier suggestions of an SnI pathway for solvolyses of A,A-dimethyl-sulfamoyl chloride (41), the results of an extended Grunwald-Winstein equation treatment of the specific rates of solvolysis of (41) in 32 solvents pointed to an Sn2 pathway. Results of a similar treatment of its rates of solvolysis in a range of solvents supported an SN2 pathway for 2-propanesulfonyl chloride (42).59... 

Dimethyl propylamine dimethametryn 3 Dimethyl propylamine propamocarb Dimethyl sulfamoyl chloride bupirimate... 

Using a typical poly (vinyl chloride) (PVC)-based membrane with different ionophores - Zn-bis(2,4,4-trimethylpen-tyl) dithiophosphinic acid complex [450], protoporphyrin IX dimethyl ester [451], porphyrin derivative [452] and hemato-porphyrin IX [453], tetra(2-aminophenyl) porphyrin [454], cryptands [455, 456], 12-crown-4 [457], benzo-substituted macro-cyclic diamide [458], 5,6,14,15-dibenzo-l, 4-dioxa-8,l 2, diazacyclopentadecane-5,14-diene [459], and (A-[(ethyl-l-pyrrolidinyl-2 -methyl) ] methoxy-2-sulfamoyl-5 -benza-mide [460] - the sensors for zinc ions were prepared and investigated. The armed macrocycle, 5,7,7,12,14,14-hexamethyl-1,4,8,11 -tetraazacyclo tetradeca-4,11 -diene dihydrogen perchlorate was used for the preparation of polystyrene-based Zn(II)-sensitive electrode [461]. 

On the addition of ethereal hydrogen chloride to a solution of the base in isopropanol and recrystallization from anhydrous ethanol of the salt formed, there is obtained 3-dimethyl-sulfamoyl-10-(2-dimethylaminopropyl)phenthiazine hydrochloride (2.1 grams), MP 214 C with decomposition. After dissolving the product in anhydrous ethanol and adding meth-anesulfonic acid there is obtained fonazine mesylate. 

N-l-Acyl and N-l-sulfamoyl derivatives are formed by the reaction of appropriate chlorides with ergolines under phase-transfer catalysis (Loncaric and Rucman, 1984, Taimr and KrSpelka, 1987). Dimethyl and diethylcarbamoyl derivatives were prepared in the same manner. N-1-Acetyl ergolines were also prepared by a reaction with acetic anhydride under catalysis with BF3 etherate (Benes, 1989). N-1 Formyl ergolines can be obtained by treatment with formic acid and a tertiary amine under palladium catalysis (Taimr et ai, 1987b). 

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