Citation: Xiao Bing WAN, Chuan Ming JIN, Xun GUO, Guo Yuan LU. Synthesis of Schiff Base Calix[4]arene Crowns[J]. Chinese Chemical Letters, ;2002, 13(8): 699-700. shu

Synthesis of Schiff Base Calix[4]arene Crowns

Department of Chemistry, Nanjing University, Nanjing 210093

Received Date: 17 September 2001

This letter reports the synthesis of Schiff base calix[4]arene crowns containing m-xylylene phenol subunit, in which calix[4]arene Schiff base crowns 2a, 2b and 2c were formed by 1:1 condensation of calix[4]arene diamine 1 with dialdehydes (2, 6-diformyl-4-chlorophenol 3a, 2, 6-diformyl-4-methylphenol 3b, 2, 6-diformyl-4-tert-butylphenol 3c) under high dilute condition in refluxing anhydrous ethanol in 65-70% yield.
- Calix[4]arene,
- Schiff base,
- 2,6-diformyl-4-substituted phenol,
- 1:1 condensation
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