128792-97-2

Upstream product

• 13653-12-8 4,4'-methylenebis[2,6-bis(hydroxymethyl)phenol] 
• 74-88-4 methyl iodide 
• 186581-53-3 diazomethane 

Downstream Products

• 132055-71-1 2,2'-dimethoxy-5,5'-carbonyl-di-isophthalic acid tetramethyl ester 
• 873962-53-9 2,2'-dimethoxy-5,5'-carbonyl-di-isophthalic acid 
• 859963-85-2 2,2'-dihydroxy-5,5'-carbonyl-di-isophthalic acid 
• 132037-18-4 5,5'-methylenebis<2-hydroxy-1,3-benzenedicarboxylic acid> 
• 611-99-4 4,4'-Dihydroxybenzophenone 
• 128793-01-1 bis<3,5-bis(1-hydroxyethyl)-4-methoxyphenyl>methane 
• 128793-05-5 bis(3,5-divinyl-4-methoxyphenyl)methane 
• 139213-18-6 5,5'-methylenebis<2-methoxy-1,3-benzenedicarboxylic acid> 
• 859963-80-7 5-(3-carboxy-5-formyl-4-methoxy-benzyl)-2-methoxy-isophthalic acid 
• 859964-49-1 2,2'-dimethoxy-5,5'-methanediyl-di-isophthalaldehyde 

Relevant academic research and scientific papers

Stereoselective Synthesis of Meta- and Three-bridged Cyclophanes with Intramolecular Photocycloaddition by Using the Steric Effect of Methoxyl Group

Key Words: Cyclophane; stereoselectivity; conformation; regioisomer; photocycloaddition; torsional angle.Dimethoxymetacyclophanes 9 (n=2,3,4,5, and 6) and 10 were stereoselectively obtained in 61-87percent yields by means of photocycloaddition.

Synthesis of multi-bridged cyclophanes by means of [2 + 2] photocycloaddition. Stereocontrol of cyclobutane-linkage by methoxyl group

2,6-Divinylanisole derivatives 6 were irradiated in dry benzene under a nitrogen atmosphere to afford three-bridged cyclophanes 7 having exclusively anti-directed cyclobutane rings as linkages in 11 to 78% yields.