Pentanal → 2-Propylhept-2-enal

Temperature

80 °C

A reactor equipped with a dropping funnel and a condenser was charged with 20 g (0.5 mol) of sodium hydroxide (manufactured by Kanto Chemical Co., Inc.) and 500 mL of water. 2434 g (28.3 mol) of n-pentanal (“Valeraldehyde” manufactured by Tokyo Chemical Industry Co., Ltd.) was added dropwise to the mixture from the dropping funnel over 3.5 hours while stirring the mixture at 80° C. The mixture was stirred at 95° C. for 2 hours, and the aqueous layer was removed from the reaction product. The reaction product was purified by distillation (b.p.: 70° C./0.7 kPa) to obtain 1930 g of 2-propyl-2-heptenal.

1. customA reactor equipped with a dropping funnel and a condenser
2. stirringThe mixture was stirred at 95° C. for 2 hours
3. customthe aqueous layer was removed from the reaction product
4. distillationThe reaction product was purified by distillation (b.p.: 70° C./0.7 kPa)

ORD record

ord-b6e45f4d77e244dc9da30e3af403bcff

Source dataset

uspto-grants-2016_05

DOI

10.6084/m9.figshare.5104873.v1

Patent number

US09328306B2