Which of the following reagent can be used to procect vicinal alcohols
A. acetone, HCl
B. SO3, H2SO4
C. EtOH
D. PhCH2COCl
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What reagent can make the ketone oxime from ketone
A. hydroxylamine
B. aminourea
C. hydrazine
D. primary amine
What is the reaction condition of Clemmensen Reduction Reaction
A. Zn-Hg, HCl
B. N2H4, NaOH
C. NaBH4
D. 1) HSCH2CH2CH2SH2) Ni, H2
What is reaction condition of the Huangminglong （黄鸣龙）reduction
A. N2H4, NaOH
B. N2H4, NaOH, HOCH2CH2OCH2CH2OH (high boiling point solvent)
C. Zn-Hg, HCl
D. 1) HSCH2CH2CH2SH2) H2, Ni
When the carbonyl group of a neutral ketone is protonated,()
A. the resulting species becomes more electrophilic.
B. the resulting species is activated toward nucleophilic attack.
C. subsequent nucleophilic attack on the resulting species is said to occur under acid-catalyzed conditions.
D. the resulting species has a positive charge.
E. all of the options are correct
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