Acetic Acid → Butane-2,3-diyl diacetate

HRID 838890

反応式

HRID 838890 の反応式
C(O[C:5]([O:9][C:10](=[O:12])[CH3:11])=[CH:6][CH2:7]C)(=O)C.[CH2:13]=CC=C.O=O.[C:19]([OH:22])(=[O:21])[CH3:20]>[Pd]>[C:10]([O:9][CH:5]([CH:6]([O:21][C:19](=[O:22])[CH3:20])[CH3:7])[CH3:13])(=[O:12])[CH3:11]

参加物

6

反応物 4

HCID 176Acetic AcidHCID 977OxygenHCID 78451,3-ButadieneHCID 18688720Diacetoxy-butene

生成物 1

HCID 66193Butane-2,3-diyl diacetate

試薬・触媒・溶媒 1

HCID 23938Palladium触媒2 回

実験手順

Diacetoxybutene which had been prepared by catalytically reacting butadiene, acetic acid and an oxygen-containing gas with a palladium-based catalyst at 80° to 100° C, was hydrogenated in the presence of a palladium catalyst carried on activated carbon to produce diacetoxybutane having the composition set forth below. The resulting diacetoxybutane was then hydrolyzed in the presence of a cation exchange resin, DIAION SK1B, (trade mark, manufactured by Mitsubishi Chemical Industries Ltd.) at about 60° C and subjected to distillation to prepare crude 1,4-butanediol, which contained 98.5 % by weight of 1,4-butanediol, 0.7 % by weight of high boiling substances and 0.8 % by weight of other substances.

後処理

  1. customat 80° to 100° C

出典と根拠

ORDレコード
ord-ed7cd9005b4f4feba0272b093423605c
出典データセット
uspto-grants-1978_06
特許番号
US04093633

関連ノート

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