136288-21-6

Upstream product

• 108-85-0 1-bromocyclohexane 
• 91-20-3 naphthalene 
• 110-83-8 cyclohexene 
• 108-93-0 cyclohexanol 
• 58556-75-5 2,7-dibromonaphthalene 
• 582-17-2 2,7-Dihydroxynaphthalene 

Downstream Products

• 1286791-37-4 1-bromo-2,7-dicyclohexylnaphthalene 
• 1286791-55-6 N,N'-bis(2,7-dicyclohexylnaphthalene-1-yl)ethane-1,2-diamine 
• 1288984-33-7 1,3-bis(2,7-dicyclohexylnaphthalen-1-yl)imidazolidin-2-ylidene 

Relevant academic research and scientific papers

The effect of substituents on the syn-anti conformer ratio in naphthyl-based imidazolinium salts and their corresponding N-heterocyclic carbenes

Eight new N-heterocyclic carbenes (NHCs) featuring substituted naphthyl side chains were synthesized. These molecules are present in solution as a stable mixture of anti and syn conformers. Through careful tuning of the substituents on position 2 and 2,7

Study of regioselective dialkylation of napthalene in the presence of reusable zeolite catalysts

Highly regioselective dialkylation of naphthalene using various alkylating agents can be achieved over zeolite catalysts. For example, the tert-butylation of naphthalene (1) using tert-butanol in cyclohexane over a dealuminated H-Mordenite (HM) zeolite has been optimised to give a 60% yield of 2,6-di-tert-butylnaphthalene (3) with a 2,6/2,7 ratio of over 50. This has been achieved by varying the reaction time, temperature, solvent, pressure, amount of tert-butanol, solvent and catalyst, Si/Al ratio of the catalyst, and the mode of addition. The zeolites can be easily regenerated by heating and reused.

Cyclohexylation of Naphththalene over Usy Zeolites

The influence of thermal stabilization of NH4-Y zeolite and modification of USY zeolites with solutions of hydrochloric acid on the cyclohexylation of naphthalene in the liquid phase was studied. Removal of the part of extra-framework aluminium from zeolite structure has a positive effect on both conversion of naphthalene and amount of dicyclohexylnaphthalenes formed. Modification of zeolites leads to an increase in conversion and selectivity of β-substitution in the naphthalene cyclohexylation.