MCQ
$4$ -Pentenoic acid when treated with $I_2$ and $NaHCO_3$ gives
- A$4, 5$ -diiodopentanoic acid
- ✓$5$ -iodomethyl-dihydrofuran- $2$ -one
- C$5$ -iodo-tetrahydropyran- $2$ -one
- D$4$ -pentenolyiodide
✓
Answer
Correct option: B.
$5$ -iodomethyl-dihydrofuran- $2$ -one
b
$(b)$ Iodo lactonization.
$(b)$ Iodo lactonization.
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
Which of the following reaction will not yield phenol
$C{H_3}CH = CHCHO$ is oxidised to $C{H_3}CH = CHCOOH$ using
→The maximum carbon-halogen $( C - X )$ bond length compound is :
→How many minutes are required to deliver $3.21 \times 10^6$ Columbs using a current of $500\, A$ used in the commercial production of chlorine?
→Select the rate law that corresponds to the data shown for the following reaction $A+ B\to C$
→| Expt. No. | $(A)$ | $(B)$ | Initial Rate |
| $1$ | $0.012$ | $0.035$ | $0.10$ |
| $2$ | $0.024$ | $0.070$ | $0.80$ |
| $3$ |
$0.024$ |
$0.035$ | $0.10$ |
| $4$ | $0.012$ | $0.070$ | $0.80$ |
In which reaction racemic mixture is not obtained ?
Compound $(x)$ in the above reaction is
→The coordination number of $Th$ in ${K_4}\left[ {Th{{\left( {{C_2}{O_4}} \right)}_4}\,{{\left( {O{H_2}} \right)}_2}} \right]$ is
→$\left( {{C_2}O_4^{2 - } = } \right.$ Oxalato $)$
Which of the following is formed when $ n-$ butyl lithium reacts with tin $(II) $ chloride
→In which of following reaction rearrangement take place with change in carbon skeleton ?