The major product formed in the following rea | vedclass

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Question

(A) The reaction of an alkene with a singlet carbene $(:CH_2)$ is a stereospecific syn-addition reaction.Since the starting material is cis-but$-2-$en

Vedclass · Accepted Answer

cis$-1,2-$dimethylcyclopropane

Vedclass · Answer

(A) The reaction of an alkene with a singlet carbene $(:CH_2)$ is a stereospecific syn-addition reaction.Since the starting material is cis-but$-2-$ene,the addition of the singlet carbene occurs from the same face of the double bond,preserving the cis-stereochemistry of the methyl groups.Therefore,the major product formed is cis$-1,2-$dimethylcyclopropane.

The major product formed in the following reaction is:

Similar Questions

$CH_3 - CH = CH_2 \xrightarrow[(2) CH_3CO_2T]{(1) THF : BD_3} (A)$; Product $(A)$ of the above reaction is

Bromination of $(E)-2$-butenedioic acid gives:

In the reaction sequence:
$Cyclohexane$ $\xrightarrow{hv/Cl_2} (X)$ $\xrightarrow{alc. KOH/\Delta} (Y)$ $\xrightarrow[(ii) H_2O/Zn]{(i) O_3} (Z)$
$(Z)$ will be :

$A$ hydrocarbon with molecular formula $C_6H_{10}$ absorbs only one molecule of $H_2$ upon hydrogenation. Ozonolysis of the hydrocarbon yields $OHC-CH_2-CH_2-CH_2-CH_2-CHO$. The hydrocarbon is:

The product $A$ of the following reaction is:
$R_2C=CHR' \xrightarrow[Zn/H_2O]{O_3} A$

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