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2-Carboxybenzaldehyde

2022-06-22
Carboxybenzaldehyde proprietates habet aldehyde et acid. Formari potest cum alcohol, ad Ag(NH3)2NO3 redactum, in oxime cum H2NOH formari. Ad punctum calefactum tabescens, formari potest in anhydride (aether diphenylphthalide).


Magni momenti est medium in synthesi medicamentorum antipyreticorum et analgesicorum. Est album ad quasi-album pulveris crystallini in ungue 96~ 100℃ liquescentis.


carboxyl benzaldehyde fere obtinetur ex brominatione et hydrolysi phenol. Calor phenol, transi per reactionem brominum, per celeritatem transire, fac reactionem caudae gasi basically nullum vaporem brominum emissionem, transi bromine, reactant aquam addunt, hydrolysis. O-carboxyl benzaldehyde praecipitatur post refrigerationem.


Obtinetur per brominationem et hydrolysim phenol. Calor phthalein ad 140-145„ƒ, reactionem bromineam, celeritatem diverticulum moderari, ita ut reactionem gasi caudae basicaliter nullus vaporum brominum emittat. Post brominum amotionem, bromide hydrogenii residua remotum est a dioxide et decompressione in 120„ƒ libro chemico. Reactants hydrolyzed cum aqua pro 0.5h in aqua balnei ferventis. O-carboxyl benzaldehyde praecipitatur post refrigerationem. Cedant LX%.



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