265654-17-9

Upstream product

• 68-12-2 N,N-dimethyl-formamide 
• 64000-53-9 3,4-bis-hexyloxy-benzaldehyde 
• 265654-11-3 2-bromo-4,5-bis-hexyloxy-benzaldehyde 
• 265654-14-6 4,5-bis-hexyloxy-benzene-1,2-dicarbaldehyde 
• 265654-15-7 (2-bromo-4,5-bis-hexyloxy-benzyl)-phosphonic acid diethyl ester 
• 265654-13-5 2-dimethoxymethyl-4,5-bis-hexyloxy-benzaldehyde 
• 265654-12-4 1-bromo-2-dimethoxymethyl-4,5-bis-hexyloxy-benzene 

Relevant academic research and scientific papers

A new synthetic route to tribenzo[a,e,i][12]annulenes

The tribenzo[a,e,i][12]annulene 10 and the corresponding twofold annulene 14 were prepared on synthetic routes which first led from suitably functionalised starting compounds (2, 11) to the 1,2-distyryl- and 1,2,3,4- tetrastyrylbenzene derivatives 9 and 13 with two and four formyl groups, respectively. The cyclisation to 10 and 14 was achieved by applying the McMurry reaction. The extended ring system of compound 14 represents a discotic mesogen. The generation of liquid crystals was obtained with eight hexyloxy chains on the periphery. (C) 2000 Elsevier Science Ltd.