Organic compounds Synthesis 61 Spectra 21 Spectrochemical analysis 20 Spectrum analysis 15 Chemistry, Organic 8 Analysis 7 Organic chemistry 6 Absorption spectroscopy 5 Biotechnology 5 Chemical tests and reagents 5 Enzymes 5 Stereochemistry 5 Transition metals 5 Biocatalysis 4 Biotransformation (Metabolism) 4 Catalysis 4 Chemical reactions 4 Chemistry 4 Organic photochemistry 4 Protective groups (Chemistry) 4 SCIENCE / Chemistry / Industrial & Technical 4 Chemicals 3 Inorganic compounds 3 Metal catalysts 3 Nuclear magnetic resonance spectroscopy 3 Oxidation 3 SCIENCE / Chemistry / Organic 3 Biochemistry 2 Chemistry, organic 2