Calix[4]quinone. Part 1: Synthesis of 5-hydroxycalix[4]arene by calix[4]quinone monoketal route

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题名:	Calix[4]quinone. Part 1: Synthesis of 5-hydroxycalix[4]arene by calix[4]quinone monoketal route
作者:	Lee MD Yang KM Tsoo CY Shu CM Lin LG
贡献者:	化學系
关键词:	calix[4]arene derivatives chlorine dioxide oxidation monoketal
日期:	2001
上传时间:	2009-12-11 11:18:47 (UTC+8)
摘要:	The oxidation of calix[4]arene tribenzoate 1 with chlorine dioxide yielded the corresponding calix[4]monoquinone tribenzoate 2. Reaction of monoquinone 2 with ethylene glycol under acidic conditions produced the protected monoketal derivative 3. The basic hydrolysis of the benzoate, followed by an acidic cleavage of ketal moieties and a metal hydride reduction of the quinones or vice versa, converted 3 to the title compound, 5-hydroxycalix[4]arene (7). (C) 2001 Elsevier Science Ltd. All rights reserved.
關聯:	TETRAHEDRON Volume: 57 Issue: 38 Pages: 8095-8099
显示于类别:	[化學系所] 期刊論文

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