Show how 1-butyne could be synthesized from each of the following
a) 1-butyne
b) 1-chloro-1-butene
c) 1,1-dichlorobutane
d) Ethyne and ethyl bromide
Show how 1-butyne could be synthesized from each of the following?
2016-07-19 5:04 am
回答 (1)
2016-07-19 10:04 am
a)
"1-butyne"and "1-butyne" are identical. It is not necessary to synthesize.
b)
CH₃CH₂CH=CHCl + NaNH₂ (in NH₃) → CH₃CH₂CH≡CH + NaCl
c)
CH₃CH₂CHClCHCl + 2NaNH₂ (in NH₃) → CH₃CH₂CH≡CH + 2NaCl
d)
CH≡CH + Na → CH≡C⁻Na⁺ + (1/2)H₂
CH≡C⁻Na⁺ + CH₃CH₂Cl →CH₃CH₂CH≡CH + NaCl
"1-butyne"and "1-butyne" are identical. It is not necessary to synthesize.
b)
CH₃CH₂CH=CHCl + NaNH₂ (in NH₃) → CH₃CH₂CH≡CH + NaCl
c)
CH₃CH₂CHClCHCl + 2NaNH₂ (in NH₃) → CH₃CH₂CH≡CH + 2NaCl
d)
CH≡CH + Na → CH≡C⁻Na⁺ + (1/2)H₂
CH≡C⁻Na⁺ + CH₃CH₂Cl →CH₃CH₂CH≡CH + NaCl
收錄日期: 2021-04-18 15:22:54
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