In the reaction sequence (CH)3-C≡ C-H overset(CH)3 MgBr arrow (CH)4+(.A.) arrow (ii) H2 O / H+(i) (CO)2(.B.) B will be

Question

In the reaction sequence (CH)3-C≡ C-H overset(CH)3 MgBr arrow (CH)4+(.A.) arrow (ii) H2 O / H+(i) (CO)2(.B.) B will be (A) CH3-C≡ C-CH3 (B) CH3-C≡ C-MgBr (C) CH3-C≡ C-COOH (D) CH3-CH=CH-COOH

Tardigrade Admin · Accepted Answer

Here the compounds A and B are as follows

(C H)_{3} - C \equiv C - H - (C H)_{4} \to (C H)_{3} M g B r (A) (C H)_{3} - C \equiv C - M g B r \to_{(ii) H_{2} O / H^{+}}^{(i) (CO)_{2}} (B) (C H)_{3} - C \equiv C - COO H

Q. In the reaction sequence
$(C H)_{3} - C \equiv C - H \to (C H)_{3} M g B r (C H)_{4} + (A) \to_{(ii) H_{2} O / H^{+}}^{(i) (CO)_{2}} (B)$
B will be

$C H_{3} - C \equiv C - C H_{3}$

$C H_{3} - C \equiv C - M g B r$

$C H_{3} - C \equiv C - COO H$

$C H_{3} - C H = C H - COO H$

Here the compounds A and B are as follows
$(C H)_{3} - C \equiv C - H - (C H)_{4} \to (C H)_{3} M g B r (A) (C H)_{3} - C \equiv C - M g B r \to_{(ii) H_{2} O / H^{+}}^{(i) (CO)_{2}} (B) (C H)_{3} - C \equiv C - COO H$

Q. In the reaction sequence (CH)3​−C≡C−H→(CH)3​MgBr(CH)4​+(A)→(ii)H2​O/H+(i)(CO)2​​(B) B will be

CH3​−C≡C−CH3​

CH3​−C≡C−MgBr

CH3​−C≡C−COOH

CH3​−CH=CH−COOH