27499-60-1

Upstream product

• 27559-94-0 (E)-1,2-bis(2-ethynylphenyl)ethene 
• 95-47-6 o-xylene 
• 74-88-4 methyl iodide 
• 65276-27-9 2-ethyl-5-tert-butyl-benzyl chloride 
• 83325-97-7 o,o'-Stilbenedicarboxylic acid dichloride 
• 27559-93-9 2,2'-Diacetyl-trans-stilben 
• 65276-10-0 5,5'-di-tert-butyl-2,2'-diethyldiphenylethane 
• 7364-19-4 4-ethyl-tert-butylbenzene 

Relevant academic research and scientific papers

Arenes Disubstituted with Primary Alkyl Groups from Xylylene Dianions

Xylenes were converted into dianions 1.Reaction of dianions 1 with dialkyl sulfates gave symmetrical dialkylbenzenes 2 (R = R'), while methyl iodide caused oxidative coupling followed by alkylation to give 8.Unsymmetrical dialkylbenzenes 2 (R =/= R') were made by an indirect route involving monoanions 9 and 11.Reactions of dianions 1 with dihalides gave cyclophanes o-3 (n = 5,6,9), m-3 (n = 8-10), and p-3 (n = 9-11) and cyclophanes o-4 (n = 2,5,7,9) and m-4 (n = 2,6,7).Dianion 5 from 2,6-lutidine was used to prepare nitrogen analogues of 2 (R = R') and m-3 (n = 8-10).