Water → HCID 13491011, compound

Reaction equation

[CH:1](=O)[C:2]([CH3:5])([CH3:4])[CH3:3].[CH3:7][NH:8][C:9](=[O:15])[C@H:10]([CH:12]([CH3:14])[CH3:13])[NH2:11].O>CCCCC>[CH3:7][NH:8][C:9](=[O:15])[C@H:10]([CH:12]([CH3:14])[CH3:13])[N:11]=[CH:1][C:2]([CH3:5])([CH3:4])[CH3:3]

Participants

Procedure

There were added 95.7 ml (870 mmols) of pivalaldehyde to 112.0 grams (864 mmoles) of (S)-valine monomethylamide dissolved in 300 ml of n-pentane. The reaction mixture was boiled at a water separator until the formation of water was ended (4 hours). The solvent was removed under reduced pressure and there remained behind 130 grams (76% of theory) of (S)-N-(2',2'-dimethyl-propylidene)-valine monomethylamide, which could be further worked without purification. To ascertain the exact material data, a test of sample was purified by distillation.