The formation of something complex or coherent by combining simpler things. / (signal processing) Creation of a complex waveform by summation of simpler waveforms.

(organic chemistry) The synthesis of a specific enantiomer of a compound (or of a mixture containing more of one enantiomer than the other)

(petrochemistry) The gas obtained by heating coal and steam; coal gas.

(chemistry) The synthesis of a specific, chosen stereoisomer / (chemistry) The synthesis of a stereospecific polymer

(chemistry) The synthesis of a complex organic compound (especially a naturally occurring one) from simple, readily available compounds.

A chemical reaction of 2-aminobenzaldehydes with ketones to form quinoline derivatives.

(organic chemistry) A chemical reaction that transforms primary alkyl halides into primary amines, traditionally by means of potassium phthalimide.

(chemistry) A series of organic reactions forming a flavonol from a coumarone.

(organic chemistry) The conversion of ammonium cyanate into urea.

(organic chemistry) An organic reaction converting a beta amino alcohol to an aziridine with the aid of sulfuric acid.