作者:Tsukasa Matsuo、Hiroyuki Kawaguchi
DOI:10.1021/ic7011167
日期:2007.10.1
anisol-diphenol H2[RO2O] (2,6-bis(3-tert-butyl-5-methyl-2-hydroxybenzyl)-4-R-anisole; R = Me (2a), tBu (2b)). Reaction of H2[RO2O] with 2 equiv of nBuLi gave the dilithiated derivatives Li2[RO2O]. The lithium salts were reacted with ZrCl4 in toluene/THF to obtain the dichloride complex [RO2O]ZrCl2(thf) (R = Me (3a), tBu (3b)). 3b underwent dimerization along with a loss of THF to generate [tBuO2O]ZrCl2}2
发现线性三酚H3 [RO3](2,6-双(3-叔丁基-5-甲基-2-羟基苄基)-4-R-苯酚; R = Me,tBu)经历选择性单去质子化和单-O-甲基化。用1当量的nBuLi对H3 [RO3]进行质子化导致形成Li H2 [RO3]}(Et2O)2(R = Me(1a),tBu(1b)),其中中心酚单元被锂化。在CH3CN中,在K2CO3存在下,用对甲苯磺酸甲酯处理H3 [RO3],得到相应的苯甲酚-二酚H2 [RO2O](2,6-双(3-叔丁基-5-甲基-2-羟基苄基)- 4-R-茴香醚; R = Me(2a),tBu(2b))。H 2 [RO 2 O]与2当量的nBuLi反应,得到二锂化衍生物Li 2 [RO 2 O]。锂盐与ZrCl4在甲苯/ THF中反应,得到二氯化物络合物[RO2O] ZrCl2(thf)(R = Me(3a),tBu(3b))。3b随THF的损失而发生二聚,生成[tBuO2O]