Sia2BH followed by NaOH/H2O2 convert terminal alkyne to aldehyde..

H2O,H2SO4 1. (sia) BH 2. NaOH, H202
show mechanism please
DaBhu 1. Sia BH (disiamyl borane) 2. NaOH/H202 3. Cro3/H2SO4/H20
Predict the following major products
R–CECH - HO 1) Sia BH, THE –c=CH - 1) H2O,/NaOH CH(CH) 0-OH 25°C. Benzene AHC=CHR + 1. Ether or womento LIAH, 2. H2O
4. (15) Predict the major organic product, including any appropriate stereochemistry, for each of these reactions: NaSH H 2 Pi > 1) BH 3 2) NaOH, H202 n g hanisms to explain these transformations:
Please explain in full detail.
4. (15) Predict the major organic product, including any appropriate stereochemistry, for each of these reactions: NaSH 1) BH 3 2) NaOH, H202
what is the product, of the following reaction?
1.) Sia,BH 2.) Н,0, NaOH ОН ТЯ . ОН A В с D
1. PREDICT THE PRODUCT: Provide the structure of the major product expected from the following reactions or reaction sequences. Make sure you account for any regio- and/or stereochemistry! (24 pts.) H2O 1. Hg(OAC), CH, OH 2. NaBH H2SO4 H20 1) BH-THF 2) H202, KOH HBr Bry, H2O HBr ROOR 1. BH3-THF 2. H2O2, NaOH H20, H2SO4 1. NaNH2 H2 H-CEC-CH2 CH2 CH3 2. CH CH Br Lindlar cat 1. Sia BH-THF 2. H2O2, H2O
4) of the following reaction. Predict the product 1. BH 3 THI 2. H202 HO- T
PREDICT THE PRODUCT OF THE FOLLOWING Sia BH H₂C -C C-H 2. H₂O2, OH 1, ㅋ
Predict the products of the following reactions
1 equivalent HBr NaNH2 Br (excess) 1. Sia BH, THE 2. H2O2, NaOH HgSO4 H2SO4 H20