4- Chlorobenzylidene chloride

Chlorobenzalchloride (2-Chlorobenzylidene chloride) 228-9 1 5670 1 399 Oxid 2-chlorobenzoic acid, 141 Hydrolysis- ... 

The previously described synthesis1 from o-chlorobenzylidene chlorides has been extended to the use of o-chlorobenzonitriles,15 o-chlorobenzalde-hydes,16 and o-chlorophenacyl compounds.17 An example is the preparation... 

Chlorobenzylidene chloride is hydrolysed by concentrated sulfuric acid in 5 hours at room temperature,531 and 4-chloro-3,3,4-trifluoro-l-phenyl-cyclo-butene gives 3-phenyl-3-cyclobutene-l,2-dione (75% yield) when treated with... 

Chlorobenealchoride (3-Chlorobenzylidene chloride) 237-40 Oxid — 3-chlorobenzoic acid, 158 Hydrolysis —... 

Chlorobenzalchloride (4-Chlorobenzylidene chloride) 237 Oxtd - 4-chIorobcnzoic acid, 240. Hydrolysis — ... 

Chloroacetophenone (phenacyl chloride) Chlorbenzene (monochlorobenzene) o-Chlorobenzylidene malononitrile (OCBM) Chlorobromomethane/bromochloromethane 2-Chloro-l, 3-butadiene, see p-Chloroprene Chlorodiphenyl (42% chlorine)... 

Ar-(cr-Chlorobenzylidene)carbamoyl chloride (241 R = Cl) reacted with sodium azide in glyme to give the fused oxadiazole 242 in 52% yield, in addition to other products.328 The mechanism of this reaction is uncertain, but it is thought to involve the intermediacy of 241 (R = N3) and the triazolone 243. 

The reaction of A(-(a-chlorobenzylidene)carbamyl chloride (180) with sodium azide gave (74JOC1226), among other products, 3,6-diphenyl-1,2,4-triazolo[3,4-6] 1,3,4-oxadiazole (182) and not the other possible product 181. The former product was unequivocally prepared (74JOC1226) by cyclization of 4-benzoylamino-5-chloro-3-phenyl-1,2,4-triazole (184) with aqueous sodium carbonate and found to be identical with that obtained by the previous method. 2-Hydrazino-l,3,4-oxadiazoles (185) with carboxylic... 

Imidoyl chlorides are decomposed by heat into nitriles and alkyl chlorides.1140 This is the basis of the von Braun reaction,1141 in which alkylamines, phenyl-alkylamines, oc,co-diamines, or secondary cyclic amines are first benzoylated, next the benzoyl compounds are converted into (a) a-chlorobenzylidene amines or (b), tt-dichlorobenzyl amines, and finally these products are cleaved thermally. 

The chlorides derived from the reaction of aroyl phenylhydrazines with phosphorus pentachloride are recorded in the literature under a variety of names. While Chemical Abstracts lists these compounds as the phenyl-hydrazones of the corresponding acid chlorides (for example, benzoyl chloride phenylhydrazone for C H5CiCl)=NNHC H5), Beilstein uses the terms a-chlorobenzyliden phenylhydrazine or a-chlorobenzal phenyl-hydrazine for this compound. In view of the relationship of the chlorides I with the corresponding acid hydrazides (II), their hydrolysis products, the names hydrazide chlorides or hydrazidoyl chlorides are more appropriate. In order to preserve conformity of nomenclature, the latter name is used in this book. 

Imidazoles. Excess NHg passed into a soln. of m5-[N-(a-chlorobenzylidene)anilinio]-desoxybenzoin chloride in dry methylene diloride 1,2,4,5-tetraphenylimidazole. 

CS-100. See Dimethicone CS-420. See Silicone emulsion CS-922. See Calcium sodium caseinate CSA. See Chlorosulfuric acid CSC. See 4-Cyanobenzenesulfonyl chloride CSE-6000 Series. See Epoxy resin CSet. See Starch CS Film. See Polyethylene CS gas. See o-Chlorobenzylidene malononitrile CSM. See Polyethylene, chlorosulfonated C Sodium Silicate. See Sodium silicate CSorbidex C CSorbidex NC] CSorbidex P, CSorbidex S. See Sorbitol CSP. See Cupric sulfate pentahydrate CSPE. See Polyethylene, chlorosulfonated CStabiTex 06301] CStabiTex 06305] CStabiTex 06307. See Food starch, modified CStabiTex-lnstnat 12631] CStabiTex-lnstnat 12632. See Starch, pregelatinized CSX-240. See Carbon black CT-58. See Zinc phosphate CT-62. See Zinc chloride CT-70. See Sodium silicate CT-708 Potable Water Treatment. See Sodium hexametaphosphate CT-781] CT-788. See Zinc phosphate CTA. See 4-(Methylthio) benzonitrile CTA. See 2-Ethylhexyl thioglycolate... 

N-Carbamylamidines. A soln. of N-(a-chlorobenzylidene)carbamoyl chloride in benzene added dropwise with ice-cooling to a soln. of aniline in the same solvent -> N-phenyl-N -anilinoformylbenzamidine. Y ca. 100%. F. reactions, also ring closures, s. S. Yanagida et al., Bull. Chem. Soc. Japan 44, 2182 (1971). 

Small molecules with novel combinations of functional groups sudi as N-(a-chlorobenzylidene)carbamoyl chloride S tosylmethyl isocyanide N-(chlorocarbonyl) isocyanate , or triphenyl(prop-2-ynyl)phosphonium bromide have each become the source of a variety of old and new compounds, mostly heterocyclics. By an anomalous reaction, tosylmethyl isocyanide converts adamantane into 2-cyanoadamantane in high yield . 

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