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
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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
Which of the following reagents can be used to reduce acetic acid to ethyl alcohol?()
A. 1. LiAlH4 2. H3O+
B. 1. NaBH4 2. H3O+
C. H2/Pt
D. NH2NH2, NaOH
What is the major product when (CH3)2CHCH2CH2Br is subjected to the following reaction sequence()Mg, etherCO2 H3O+
A. 3-methyl-1-butanol
B. 2-methyl-2-butanol
C. 4-methyl-1-pentanol
D. 4-methylpentanoic acid
What class of organic compounds results when cyclopentanone reacts with ethylamine in the presence of trace acid?()
A. cyanohydrin
B. semicarbazone
C. imine
D. enamine
E. oxime
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