Solvent- and catalyst-free synthesis of 2,3-dihydro-1H-benzo[d]imidazoles
Reactions of acyclic ketones and o-phenylenediamines under solvent- and catalyst-free conditions have been developed for the preparation of dihydrobenzimidazoles. This method can also be used for the synthesis of other heterocyclic compounds such as dihydrobenzothiazoles and perimidines. The Royal Society of Chemistry.
Method of making dihydroperimidine squaraine compounds
A method to make squaraine dyes involves the reaction of 1,8-diaminonaphthalene with 1,3-dihydroxyacetone dimer in a first reaction mixture comprising the appropriate solvents to prepare a first intermediate. This first intermediate is then reacted with a
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(2010/11/29)
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