Acrolein → 3,3-Diethoxy-1-propene

HRID 1452080Notes

Reaction equation

HRID 1452080 reaction equation
C(O)[CH2:2][CH2:3][CH2:4][OH:5].[CH:7]([CH:9]=C)=[O:8].[CH3:11][CH:12](CO)CO>>[CH3:9][CH2:7][O:8][CH:4]([O:5][CH2:11][CH3:12])[CH:3]=[CH2:2]

Participants

4

Reactant 3

HCID 7847AcroleinHCID 80641,4-ButanediolHCID 75103Methylpropanediol

Product 1

HCID 624773,3-Diethoxy-1-propene

Procedure

U.S. Pat. Nos. 3,929,915, 3,963,754 and JP-A-Sho 61-39613 report a three-step process for preparing 1,4-butanediol which comprises reaction of acrolein with 2-methyl-1,3-propanediol under conventional conditions to produce acrolein acetal (2-vinyl-5-methyl-1,3-dioxane) (Reaction 1), hydroformylation of the acrolein acetal under conventional conditions to produce the corresponding aldehydes (Reaction 2), and hydrolysis and hydrogenation of the aldehyde of 2-vinyl-5-methyl-1,3-dioxane under conventional conditions to obtain a mixture of 1,4-butanediol and 2-methyl-1,3-propanediol (Reaction 3). ##STR4##

Sources & evidence

ORD record
ord-83b52f3aa2034f81b92e79b9ac835153
Source dataset
uspto-grants-1997_02
Patent number
US05606079

Reaction notes

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