In organic chemistry, atoms other than carbon and hydrogen are generally referred to as heteroatoms. The most common heteroatoms are nitrogen, oxygen and sulfur. Now I present to you an article called Synthesis of (pentahydroxypentyl)pyrazoles by reaction of D-galactose arylhydrazones with 2-nitro-1-phenylalkenes, published in 1986-12-31, which mentions a compound: 13599-22-9, mainly applied to galactose arylhydrazone cyclocondensation phenylnitroalkene; nitrophenylalkene arylhydrazone galactose cyclocondensation; hydroxypentylpyrazole, HPLC of Formula: 13599-22-9.
The reactions of aldehydo-D-galactose phenylhydrazones I (R = Ph) with β-nitrostyrene II (R1 = H, Me) gave diphenylpyrazoles III (R = Ph, R1 = H, Me); similarly I (R = p-MeC6H4) and II (R1 = Me) gave III (R = p-MeC6H4, R1 = Me). I (R = p-MeC6H4) and II (R1 = H) gave tolylpyrazole IV showing the reverse regiochem. to that previously observed III and IV were converted to pentaacetates or oxidized by IO4- to pyrazole-3-carboxaldehydes which were then converted to carboxylic acids by moist Ag2O.
《Synthesis of (pentahydroxypentyl)pyrazoles by reaction of D-galactose arylhydrazones with 2-nitro-1-phenylalkenes》 provides a strategy for the preparation of materials with excellent comprehensive properties, which is conducive to broaden the application field of this compound(1,5-Diphenyl-1H-pyrazole-3-carboxylic acid)HPLC of Formula: 13599-22-9.
Reference:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem