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level: level 2

Questions and Answers List

level questions: level 2

QuestionAnswer
when do nitriles reduce to give primary amineson reduction with lithium aluminium hydride or catalytic hydrogenation
what are the catalysts used in reduction of nitrilesH2/Ni Na(Hg)/C2H5OH
what are nitrilesR-CN
what are amidesR-CO-NH2
reduction of amides gives amineLiAlH4 and H2O
gabriel phthalimide synthesisit is used to prepare primary amine
phthalimide on treatment with ethanolic potassium hydroxide formspotassium salt of phthalimide
how do you get N-alkylphthalimide from potassium salt of pthaminideby heating with alkyl halide
why can't aromatic primary amines be prepared from itbecause aryl halides do not undergo nucleophilic substitution with anion formed by phthalmide
what is the next step after formation of N-alkylphthalimideadd aq NaOH
what is the hoffmann bromamide degradation reactionpreparation of primary amines by treaing an amide with bromine in an aqueous or ethanolic solution of NaOH
what is the odour of lower aliphatic aminesfishy odour
what is the order of solubility of aminesit decreases with increase in molar mass due to increase in size of the hydrophobic alkyl part
amines are soluble inorganic solvents like alcohols
what is the order of boiling point for aminesprimary >secondary>tertiary
why is the boiling point of primary amines highbecause of steric hinderance
what makes amines reactivediff. in E.N. b/w N and H atoms and the presence of unshared pair of electrons on N
how do amines behave and whyas nucleophiles due to the presence of unshared electon pair on nitrogen
basic character of aminesreact with acid to form salts
amines reaction with base like NaOHthey regenarate to parent amines