作者:Donald S. Matteson、Joseph R. Thomas
DOI:10.1016/s0022-328x(00)80263-6
日期:1970.9
from methyl iodide and [(MeO)2B]3C− were converted to the more stable ethylene glycol esters and isolated by gas chromatography. Tris(dimethoxyboryl)methane, [(MeO)2B]3CH, reacts with one equivalent of alkyl halide and lithium ethoxide to yield [(MeO)2B]2CHR, best isolated by conversion to the ethylene glycol ester and distillation. Alkyl groups R include CH3, C4H9, CH2CHCH2, HCCCH2, and CH3O2CCH2
四(dimethoxyboryl)甲烷,[(MEO)2 B] 4 C,和甲醇锂在四氢呋喃中表现为[(MEO)的源极2 B] 3 Ç - ,其从烷基卤化物置换卤化物离子(RX),得到的混合物的[(MEO)2 B] 3 CR和[(MEO)2 B] 2 CR 2。从[(MEO)一dimethoxyboryl基团转移后者必须结果2 B] 3 CR到[(MEO)2 B] 3 Ç -到形式[(MEO)2 B] 4 C和[(MEO)2,B ] 2CR - ,然后与RX的第二摩尔反应。从甲基碘和[(MEO)的产品2 B] 3 Ç -转化成更稳定的乙二醇酯,并用气相色谱法分离。三(二甲氧基硼基)甲烷[(MeO)2 B] 3 CH与一当量的烷基卤和乙醇锂反应生成[(MeO)2 B] 2 CHR,最好通过转化为乙二醇酯并蒸馏来分离。烷基R包括CH 3,C 4 H 9,CH 2 = CHCH 2,HC = CCH