Cyclic compounds (2)
Sigma Aldrich (2)
Oakwood Chemical (1)
Hexamethylenetetramine · Urotropin · Methenamine Silver
Hexamethylenetetramine or methenamine is a heterocyclic organic compound with the formula (CH2)6N4. This white crystalline compound is highly soluble in water and polar organic solvents. It has a cage-like structure similar to adamantane.
1,3,4,6,7,8-hexahydro-2H-pyrimido(1,2-a)pyrimidine · hppH cpd
Triazabicyclodecene (1,5,7-Triazabicyclo[4.4.0]dec-5-ene or TBD) is a commercially available bicyclic strong guanidine base (pKa = 25.98 in CH3CN and pKa = 21.00 in THF). TBD is an organic soluble base which has been used effectively for a variety of base-mediated organic transformations such as: Michael reactions, Henry (nitroaldol reactions), Wittig reactions, Horner–Wadsworth–Emmons reactions, transesterification reactions, etherifications, ring-opening polymerizations (Scheme 1), tautomerizations and epimerizations P–C and P–N bond formations, Knoevenagel condensations, deprotonation reactions of phenols, carboxylic acids and C-acids (Scheme 2), aminolysis of esters. It is also known in deprotonated form (at the 7-position), often as a ligand, for instance in Ditungsten tetra(hpp)
Diketene is an organic compound with the molecular formula C4H4O2, and which is sometimes written as (CH2CO)2. It is formed by dimerization of ketene, H2C=C=O (IUPAC name: ethenone). Diketene is a member of the oxetane family.
6-aminohexanoic acid cyclic dimer · nylon oligomer
PYRROLE (16199-06-7, 30604-81-0, 109-97-7)
Pyrrole is a heterocyclic aromatic organic compound, a five-membered ring with the formula C4H4NH. It is a colorless volatile liquid that darkens readily upon exposure to air. Substituted derivatives are also called pyrroles, e.g., N-methylpyrrole, C4H4NCH3.
1-Vinylimidazole (25232-42-2, 1072-63-5, 29383-23-1)
1-methylimidazolium hydrogen sulfate · 1-methylimidazolium ethanoate · N-methylimidazole
1-Methylimidazole or N-methylimidazole is an aromatic heterocyclic organic compound with the formula CH3C3H3N2. It is a colourless liquid that is used as a specialty solvent, a base, and as a precursor to some ionic liquids. It is a fundamental nitrogen heterocycle and as such mimics for various nucleoside bases as well as histidine and histamine,
6-methylpyridine-2-carboxaldehyde · ligand L (pyridine)
Tetraphenylporphyrin, abbreviated TPP or H2TPP, is a synthetic heterocyclic compound that resembles naturally occurring porphyrins. Porphyrins are dyes and cofactors found in hemoglobin and cytochromes and are related to chlorophyll and vitamin B12. The study of naturally occurring porphyrins is complicated by their low symmetry and the presence of polar substituents.