Pentanal → 2-Methylbutanal

HRID 2041080Notes

Reaction equation

HRID 2041080 reaction equation
[CH:1](=[O:6])[CH2:2][CH2:3][CH2:4][CH3:5].[CH2:7]([C:10](=[CH:13][CH2:14][CH2:15][CH2:16]C)[CH:11]=[O:12])[CH2:8][CH3:9]>>[CH:1](=[O:6])[CH2:2][CH2:3][CH2:4][CH3:5].[CH3:13][CH:10]([CH2:7][CH3:8])[CH:11]=[O:12].[CH2:7]([C:10](=[CH:13][CH:14]([CH3:1])[CH2:15][CH3:16])[CH:11]=[O:12])[CH2:8][CH3:9]

Participants

5

Reactant 2

HCID 8063PentanalHCID 1187452-Propylhept-2-enal

Product 3

HCID 72842-MethylbutanalHCID 8063PentanalHCID 30187382-Propyl-4-methylhexenal

Procedure

This example describes the process according to the invention for the aldol condensation of n-pentanal (n-valeraldehyde) to 2-propylheptenal (1+1 product) and the co-aldolization of n-pentanal with 2-methylbutanal to give the cross-product (1+2 product), 2-propyl-4-methylhexenal. In contrast to Example 2, the reactor used was a DN15 tube (internal diameter 17.3 mm) not of length 3 m but of length 4 m, with a total volume of 9.1 l. In this example too, about 50% of the total volume of the tubular reactor was filled with static mixers with a hydraulic diameter of 2 mm and a relative void volume of 0.80.

Sources & evidence

ORD record
ord-e910d27557a8461e847a849126a90a56
Source dataset
uspto-grants-2013_11
Patent number
US08581008B2

Reaction notes

Loading…