The article provides an overview of organocatalysis and focuses on the use of diphenylprolinol silyl ether as a catalyst in reactions involving enamines and iminium ions. It discusses the challenges in synthesizing racemic molecules using this catalyst and suggests the potential use of inexpensive amines as alternatives. The article also presents a study on the reaction of isopropylidenemalononitrile and 3-phenyl-5-trimethylsilyl-pent-2-en-4-ynal, which resulted in the formation of substituted quinolines. It further explores the effectiveness of bis(2-ethylhexyl)amine (I) as an organocatalyst in reactions with α,β-unsaturated aldehydes, highlighting its unique characteristics and comparing it to other amine catalysts. While the catalyst shows promise, further research is needed to fully understand its potential. [Extracted from the article]