Amino acids phthalyl derivatives

Amino Acid MJ. Benzoate 3 5-Dlnltro-benzoate Phenyl-uieldo Acid />-Toluene- sulphonate 2 4-Dicbloro-phenoxy-acetate a-Naphthyl-nreldo Acid Phthalyl Derivative... 

A classical method for the preparation of a-amino aldehydes is the conversion of N -pro-tected a-amino acid chloride derivatives to aldehydes by hydrogenation in the presence of palladium on charcoal 15 or barium sulfate. 16 This method is especially used for the conversion of phthalyl-a-amino acid chlorides into the corresponding aldehydes. N -Protected amino acid chlorides or fluorides are also readily reduced by lithium tri-ferf-butoxyaluminum hydride1 7 at low temperature without epimerization, but this method is of limited application because overreduction into the respective alcohols also occurs. 

Phthalyl derivatives. Many amino acids condense with phthalic anhydride at 180-185° to yield crystaUine phthalyl derivatives ... 

Isonicotinic acid hydrazide (INH) Hydrazine derivatives Fatty acid hydrazides, fatty acid aryl hydrazine sulfonic acids Polyhydrazino and amino hydrazine derivatives Phenyl hydrazine, rotenone derivatives, semicarbozones, thiosemicarbozones, sulfonic acid hydrazides 3-Amino-phthalyl hydrazide Phenyl hydrazine and unsymmetrical diphenyl hydrazine (UDPH)... 

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