Formaldehyde → 2-Methyl-1,4-butanediol

HRID 262024

反応式

HRID 262024 の反応式
[CH:1](O)([OH:5])[C:2]#[C:3][CH3:4].[CH2:7]=[O:8].[CH:9]([OH:14])([OH:13])[CH2:10][CH2:11][CH3:12]>>[CH3:4][CH:3]([CH2:2][CH2:1][OH:5])[CH2:7][OH:8].[CH:9]([OH:14])([OH:13])[CH2:10][CH2:11][CH3:12]

参加物

5

反応物 3

HCID 712Formaldehyde2 回HCID 165788ButanediolHCID 18778928But-2-yne-1,1-diol

生成物 2

HCID 180532-Methyl-1,4-butanediolHCID 165788Butanediol

実験手順

As described in detail in copending application Ser. No. 924,212, filed July 12, 1978, (FDN-1113), the catalyst of the invention will produce high quality butanediol by a process involving a two-stage catalytic hydrogenation of a butynediol solution containing formaldehyde. During the first stage of the process, or low pressure, low temperature stage, a butanediol product having a much lower carbonyl number is obtained. The carbonyl number is the conventional measure of the undesired aldehyde and acetal content including residual formaldehyde. In the second or finishing stage, which is carried out at higher pressures and/or temperatures than the first stage, much less 2-methyl-1,4-butanediol byproduct (methylbutanediol) is produced concurrently with butanediol.

後処理

  1. customis obtained

出典と根拠

ORDレコード
ord-33a900d217334a2288501591534d1cdd
出典データセット
uspto-grants-1979_05
特許番号
US04153578

関連ノート

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