When but-2-yne is treated with Na in liquid ammonia -cis-2-butene is obtainedtrans-2-butene is formedn-butane is the major productthere is no reactionit rearranges to but-1-yne

Question

Toppr Admin · Accepted Answer

When but-x2212-2-x2212-yne is treated with Na in liquid ammonia- addition of- two H-x2212-atoms takes place at the triple bonded carbon atoms in trans -manner-CH3C-x2261-CCH3Na-x2212-x2212-x2212-x2212-x2212-x2192-Liq-NH3CH3-x2212-H-C-C-H-x2212-CH3Trans-x2212-2-x2212-butene

When but $- 2 -$ yne is treated with $N a$ in liquid ammonia :
cis $- 2 -$ butene is obtained
trans $- 2 -$ butene is formed
$n -$ butane is the major product
there is no reaction
it rearranges to but $- 1 -$ yne

When but $- 2 -$ yne is treated with $N a$ in liquid ammonia, addition of two $H -$ atoms takes place at the triple bonded carbon atoms in trans manner.
$C H_{3} C \equiv C C H_{3} N a - ---- \to L i q . N H_{3} C H_{3} - H | C = C | H - C H_{3} T r a n s - 2 - b u t e n e$

When but−2−yne is treated with Na in liquid ammonia :cis−2−butene is obtainedtrans−2−butene is formedn−butane is the major productthere is no reactionit rearranges to but−1−yne

When but−2−yne is treated with Na in liquid ammonia, addition of two H−atoms takes place at the triple bonded carbon atoms in trans manner.CH3C≡CCH3Na−−−−−→Liq.NH3CH3−H|C=C|H−CH3Trans−2−butene

When but $- 2 -$ yne is treated with $N a$ in liquid ammonia :
cis $- 2 -$ butene is obtained
trans $- 2 -$ butene is formed
$n -$ butane is the major product
there is no reaction
it rearranges to but $- 1 -$ yne

When but $- 2 -$ yne is treated with $N a$ in liquid ammonia, addition of two $H -$ atoms takes place at the triple bonded carbon atoms in trans manner.
$C H_{3} C \equiv C C H_{3} N a - ---- \to L i q . N H_{3} C H_{3} - H | C = C | H - C H_{3} T r a n s - 2 - b u t e n e$