Question
Explain hydroboration-oxidation of alkene.
✓
Answer
When diborane is treated with alkene in the presence of tetrahydrofuran (THF) solvent, an addition product trialkyl borane is formed. Trialkyl borane is then oxidised with alkaline peroxide forms primary alcohol.
The addition of diborane to the double bond takes place in such a way that the boron gots attached to the less substituted carbon. The overall reaction gives Anti-Markovnikov’s product from unsymmetrical alkenes.
The addition of diborane to the double bond takes place in such a way that the boron gots attached to the less substituted carbon. The overall reaction gives Anti-Markovnikov’s product from unsymmetrical alkenes.
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
A compound forms hexagonal close packed (hcp) structure. What is the number of (i) Octahedral voids (il) Tetrahedral voids (iii) Total voids formed in 0.4 mol of it?
Do the following complexes follow the EAN rule
(a) $Cr(CO)_4,$
(b) $Ni(CO)_4,$
(c) $Mn(CO)_5,$
(d) $Fe(CO)_5?$
→(a) $Cr(CO)_4,$
(b) $Ni(CO)_4,$
(c) $Mn(CO)_5,$
(d) $Fe(CO)_5?$
Write the preparation of potassium dichromate from chromite ore.
Write chemical equations indicating the action of following on bromobenzene.
$CH _3 COCl /$ anhy. $AlCl _3$
→$CH _3 COCl /$ anhy. $AlCl _3$
The molar conductivities at zero concentration $($or at infinite dilution$)$ of $CH _3 COONa , HCl$ and NaCl in $\Omega^{-1} cm^2$ $mol ^{-1}$ are $90.8,426.2$ and $126.4$ respectively. Calculate the molar conductivity of $CH _3 COOH$ at infinite dilution.
→What are the consequences of Schottky defect?
The hydration enthalpies of $Li ^{+}{ }_{( g )}$, and $Br _{( g )}^{-}$are $-500 kJ mol ^{-1}$ and $-350 kJ mol ^{-1}$ respectively and the lattice energy of $\operatorname{LiBr}_{(s)}$ is $807 kJmol ^{-1}$. Write the thermochemical equations for enthalpy of solution of $LiBr ( s )$ and calculate its value.
→Explain the position of actinoids in the periodic table.
What is the position of actinoids in the periodic table?
What is the position of actinoids in the periodic table?
Define coordination number.
Is synthetic rubber better than natural rubber? If so, in what respect?