Synthesis and crystal structure of p-tert-butylcalix[4]arene 1,3-distal and monosubstituted semicarbazones and thiosemicarbazones
Zhenming Liu , Dongmei Liu , Jinxiang Wang , Jing Sun , Chaoguo Yan
Chemical Research in Chinese Universities ›› 2014, Vol. 30 ›› Issue (3) : 415 -419.
Synthesis and crystal structure of p-tert-butylcalix[4]arene 1,3-distal and monosubstituted semicarbazones and thiosemicarbazones
A series of p-tert-butylcalix[4]arene 1,3-distal and monosubstituted semicarbazones and thiosemicarbazones was preparedd by acid catalyzed condensation reaction of active calixarene aldehydes with semicarbazide and thiocarbazide in methanol. One representative single crystal was determined by X-ray dirraction method, which shows that calixarene exists in cone configuration and intramolecular hydrogen-bands exist in the crystal.
Calixarene / Semicarbazide / Semicarbazone / Thiosemicarbazone / Schiff base / Crystal structure
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