ChemInform Abstract: Investigation of the Single‐Stage Synthesis of 8‐Hydroxyquinoline.

Antonova, V. V.; Stepanov, Alexander G.; Kitaeva, N. I.; Ustavshchikov, B. F.

doi:10.1002/chin.198814214

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Effect Of Acidity1

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2011

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“…Antonova et al [47] found that if the catalyst acidity is too great, the ammoxidation reaction is retarded because more unreactive adsorbed ammonium ions are formed. It seems, therefore that the overall acidity of the solid acid catalyst as well as the nature and distribution of acid sites on their surface are important factors.…”

Section: Effect Of Aciditymentioning

confidence: 98%

Catalytic Vapor Phase Pyridine Synthesis: A Process Review

2011

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The present work is an attempt to compile and analyze the literature pertaining to catalytic vapor phase pyridine synthesis. In the beginning pyridine deriving from coal tar and subsequent years it was developed as catalytic vapor phase synthesis using acetaldehyde, formaldehyde and ammonia provides best prospect for the growing demand. HZSM-5 is the best catalyst present in market to for catalytic pyridine bases; it has unique structural and acidity properties over other catalysts. It is probable that the reactants are adsorbed at catalytic sites, formation of imines precedes cyclisation and desorption from catalytic pores. In this review detail summary of the inventions in chronological order and with their postulates is narrated.

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Section: Effect Of Aciditymentioning

confidence: 98%