1) Br2
2) excess NaNH2, then H2O
3) BH3 / THF
4) H2O2, NaOH, H2O
Explanation: Addition of Br2 to alkene produces a dibromo compound as product. NaNH2 is a strong base which gives dehydrohalogenation and produces alkyne as product. Hydroboration - Oxidation of alkyne with BH3,THF and H2O2, NaOH, H2O produces aldehyde as product.
13-16 In each reaction box, place the best reagent and conditions from the list belovw Br2
In each reaction box, place the best reagent and conditions from
the list below
In each reaction box, place the best reagent and conditions from the list below. Br2 H2O, H2SO4(cat.) H202, NaOH, H2O PBr3 BH3/THF H2, Lindlar's catalyst CH3CH2OH CH3COO- NaNH2 (excess) H2, Pt
in each reaction box, place the best reagent and conditions
from the list below
In each reaction box, place the best reagent and conditions from the list below. Br2, FeBrg AICI: CI . AICI Br2 CH3CH2CH2CI, AICI HNO3, H2SO4 NBS, ROOR, hv NaBH4 AICI H2 Zn(Hg), HCI CH3CH2CI, AICI
In each reaction box, place the best reagent and conditions from
the list below.
In each reaction box, place the best reagent and conditions from the list below. 1) H3 2) 3) Br2 PBr3 KMnO4 NaOH Br2, FeBr3HBr CrO3. H2S04, H2O HBr, h H202, NaOH, H20 CH30 NBS, ROOR, hv PCC
In
each reaction box, place the best reagent and conditions from the
list below.
In each reaction box, place the best reagent and conditions from the list below. 3) 4) 5) 6) 1) 2) CH NaNH2 CHCOO Na, NH3 (1) Br2, hv CHsCH2Br HCEC NaOH H2O, mild HoO BH3THF Br2
In each reaction box, place the best reagent and conditions from
the list below.
In each reaction box, place the best reagent and conditions from the list below. HNO3, H2SO4 Br2, FeBr3 CH3CH2CH2CH2CI, AICI: CHỌCHCH_CH_CI, AICKS in AICI NBS, ROOR, hv , AICI3 H2, Pd , AICI C , AICI: CH3CH2CI, AICI3 CH3CH2CH2CI, AIC13 Br2 NaBH4
In each reaction box, place the best reagent and conditions from
the list below.
In each reaction box, place the best reagent and conditions from the list below Вг 2) Br Br Br PBr H2, Lindlar cat Br2, 2-equiv Нв, 1-еquiv. Вн-THF Br2, 1-equiv. HBr, 2-equiv NaOH Но NABH4 excess NaNH2 CHн;Br
In each reaction box, place the best reagent and conditions from
the list below.
In each reaction box, place the best reagent and conditions from the list below. In each reaction box, place the best reagent and conditions from the list below.
In each reaction box,
place the best reagent and conditions from the list
below.
In each reaction box, place the best reagent and conditions from the list below. CH3 BH3 THF H20, H2SO4 excess NaNH2 HBr SOCI2 CH3CH2Br H2, Lindlar catalyst H202, NaoH, H20 Br2 bromocyclohexane CH3Br
In each reaction box, place the best reagent and conditions from
the list below.
In each reaction box, place the best reagent and conditions from the list below. CH2CCH3 CH3CH2CH2CI, AICI3 CH3COO BH3 THF CrO3, H2SO4 HBr HCEC H202, NaOH, H20 Bra, FeBr3 NBS, ROOR, hv CH3Cl, AICI3 Br2 Brz, H20
In each reaction box, place the best reagent and conditions from
the list below.
In each reaction box, place the best reagent and conditions from the list below. 2 equiv. NaNHz excess NaNH2 CH3Br H20, H2SO4, HgSO4 Na, NH3 (1) H2O2, NaOH, H2O NaBH4 HBr Br2 CH3CH2Br H2. Lindlar catalyst BH3/THF PBr3