7,-Chlorobenz aldehyde

But in one particular case, the reaction between pentan-2-one and 4-chlorobenz-aldehyde, a different product is formed. The mass spectrum shows that two aldehydes have reacted with one ketone as usual, but that only one molecule of water has been lost. 

A variety of carbonyl compounds have been condensed with cyclopropylidenetriphenylphos-phorane (Table 3). In one report, a higher analog, i.e. the ring-methylated derivative, was also used. Aldehydes such as butanal (Table 3, entry 1), benzaldehyde (entry 2), 2-chlorobenz-aldehyde (entry 3), a,a-dialkoxyaldehydes (entries 6-8), ° 2-methyl-l,3-dithiolane-2-carbaldehyde (entry 9) and butanedial (entry have been successfully utilized in the... 

Acetaldehyde 83>, chloral 84>, isovaleralde-hyde 83)f benzaldehyde 83,100,128,140) >-isopropylbenzaldehyde 1S°J, anisaldehyde 84,loo) 2,4-dimethoxybenzaldehyde 150>, sahcylaldehyde 84>, furfural 84>, p-chlorobenz-aldehyde 14 >, phthalaldehyde 10 ), isoph-thalaldehyde 10 >, terephthalaldehyde 106>, cinnamaldehyde 84>, 2-methoxy-l-naphth-aldehyde 150>, 2-formylquinoline 105>, 9-anthraldehyde 105>, 3-pyrenealdehyde 10 > p-tolualdehyde 172>, p-nitrobenzaldehyde l72>, m-nitrobenzaldehyde 172>, />-cyanobenzaldehyde 172>... 

Benzaldehyde 10 >, -tolualdehyde 10 ), p-tolualdehyde 10 >, o-methoxybenzalde-hyde 10 >, anisaldehyde 10 ), o-chlorobenz-aldehyde 10 >... 

Beckmann rearrangement of ketoximes to synthesize aldehydes. Thus, 4-chlorobenzophenone oxime (LXI) was treated with phosphorus pentachloride and the obtained imidoyl chloride (LXII) was reduced to the corresponding azomethine (LXIII), which on hydrolysis afforded 4-chlorobenz-aldehyde (LXIV) in high yield. 

Adulteration of grape wine by the addition of fruit wines may be detected because of the presence of sorbitol in the latter. Litterscheid s o-chlorobenz-aldehyde method appears to be the best of the various tests proposed. However, mannitol may interfere if present in excessive amounts (120 120a). 

To 2.1 parts of benzil (0.01 mole) dissolved in 50 parts of glacial acetic acid containing 6 parts of ammonium acetate (0.078 mole) was added 1.4 parts of o-chlorobenz-aldehyde (0.01 mole), and the solution was refluxed for 2 hours. Ibe solution was then drowned in 200 parts of cold water whereupon 3.1 parts of reaction product precipitated. The product was isolated by filtration and purified by recrystallizing twice from ethanol. The product, 2-(o-chloro-phenyl)-4,5-diphenylimidazole, is a white crystalline solid having a melting point of 196° to 197° C. and the following analysis ... 

The ring-chiorinated benzyl chlorides are used ia the preparation of quaternary ammonium salts and as iatermediates for pharmaceuticals and pesticides. p-C. orohen zyl chloride is an iatermediate ia the manufacture of the rice herbicide, Saturn ((S-4-chlorobenzyl)-N,N-diethylthiolcarbamate [28249-77-6] (75). The o- and -chlorobenzal chlorides (l-chloro-2-and 4-dich1 oromethylhenzenes) are starting materials for the manufacture of o- and p- chlo rob enz aldehyde s. 

Solubilities of Gc in Various Solvents per 100g, at 25°C completely miscible with w, lower aliphatic ales, aldehydes ketones AcOH, pyridine, chlorobenz, phenol, furfural deny de and glycerol slightly dissolves in CS2. chlf xylene solubilities in other solvents ... 

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