To overcome the above drawbacks, we investigated the possibility to form aminopentadienals directly from amine salts and glutaconaldehyde salts. Moreover, one advantage of this strategy is that the starting materials are water soluble whereas the final compound is soluble in the organic phase. This should allow some unstable aldehydes to be easily obtained with sufficient purity for the next step through simple extraction. ... The salts of glutaconaldehydes, first ...