Chloride reaction with

The first displacement reaction at C-2 position in carbohydrates was achieved during the study of sulfuryl chloride reaction with sucrose (92). Treatment of 3,4,6,3, 4, 6 -hexa-0-acetylsucrose 2,l -bis(chlorosulfate) with lithium chloride in hexamethylphosphoric triamide at 80°C for 20 h led to the corresponding 2,l -maimo derivative in 73% yield. 

The sulfonyl chloride group is the cure site for CSM and determines the rate and state of cure along with the compound recipe. It is less stable than the Cl groups and therefore often determines the ceiling temperature for processing. The optimum level of sulfonyl chloride to provide a balance of cured properties and processibiUty is about 2 mol % or 1—1.5 wt % sulfur at 35% Cl. It also undergoes normal acid chloride reactions with amines, alcohols, etc, to make useful derivatives (17). 

Because tertiary alcohols are so readily converted to chlorides with hydrogen chloride, thionyl chloride is used mainly to prepare primary and secondary alkyl chlorides. Reactions with thionyl chloride are nonrrally carried out in the presence of potassium carbonate or the weak organic base pyridine. 

In the reaction with enamino ketones derived from dimedone (e.g., 49) p-toluenesulfonyl chloride gives the chloroiminium cation (138) isolated as the perchlorate. This indicates that initial O sulfonation is followed by addition of chloride ion and subsequent expulsion of tosylate (42) in a manner similar to the trichloroacetyl chloride reaction with 49 (Section IV.A). 

Staggered conformation, 94 molecular model of, 94 Stannous chloride, reaction with nitroarenes, 928 Starch, 1—>4- -links in, 1000 structure of, 1000 Stationary phase, chromatography and, 432... 

Acetyl chloride, reaction with 2-acetamido-2-deoxy-D-glucose, 46, 1... 

Diethylammonium chloride, reaction with chloroform to give 1,1,3-trichloro- -nonane, 45,104 Diethylazelate, 46, 31 Diethylbenzene as solvent for decomposition of diphenyliodonium-2-carboxylate in preparation of... 

Oxalyl chloride, reaction with a chloro-acetamide, 46,16... 

Thiocarbonyl tetrachloride, 46, 21 m Thiocresol (Warning), 47, 107 Thionyl chloride, 46, 16 98 Thiophosgene 46, 21 Thiophosphoryl chloride, reaction with methylmagnesium bromide to i lelci tetramethylbiphosphine disulhdc 46,102... 

Vinylidene chloride, reaction with sodium 2-methoxycthoxide to yield ketenedi(2-methoxyethyl) acetal, 47, 78... 

Sulfuryl chloride, reaction with pyruvic acid to yield chloropyruvic acid, 40,54... 

Triphenyldnnamylphosphonium chloride, reaction with benzaldchyde and lithium ethoxide to yield 1, 4-diphenyI-l,3-butadiene, 40, 36... 

Tantalum nitride (TaN) from the metal chloride reaction with nitrogen at 800-1500°C. 

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