CAS: 13294-71-8; 2-Bromobut-2-Ene

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3017-70-7 513-31-5 3017-71-8

上下游产品

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2,3-二溴丁烷置于氢氧化钾,N-甲基苄基胺盐酸盐体系中,用 水 用作溶剂,化学反应 7.0H,反应生成2-溴-2-丁烯
参考文献:Synthesis Of Tetraalkylcyclopentadienes
标题:Synthesis Of Tetraalkylcyclopentadienes
摘要:本文描述了一种从2,3-二溴丁烷合成四甲基环戊二烯的方法.将2-溴-2-丁烯基格氏试剂与甲酸乙酯反应,产生3,5-二甲基-2,5-庚二烯-4-醇镁溴化物,然后用乙酸淬灭,产生3,5-二甲基-2,5-庚二烯-4-醇.

专利信息

专利号:WO-2023122754-A1
优先权日:2021-12-23
标 题 :Processes and intermediates for preparing gb13, gb22 and himgaline
发明人：LANDWEHR ELEANOR; SHENVI RYAN; BAKER MEGHAN; OGUMA TAKUYA
权利人:SCRIPPS RESEARCH INST
摘要:Provided herein are processes for the streamlined synthesis of Galbulimima alkaloids, such as himbadine, isolated from Galbulimima belgraveana and G. baccatta, trees endemic to the rainforests of Northern Australia and Papua New Guinea, as well as analogs thereof, such as GB13, GB16, GB22, and himgaline, and further including intermediates useful in the synthesis of these and related compounds.

专利号:US-6388151-B1
优先权日:1998-11-24
标题 :Synthesis of Tetraalkylcyclopentadienes
发明人：SULLIVAN JEFFREY M; CRAWFORD RICHARD D
权利人:BOULDER SCIENT CO
摘要:A method for synthesizing tetramethylcyclopentadiene from 2,3-dibromobutane is described. A 2-bromo-2-butene Grignard is reacted with an ethyl formate to produce a 3,5-dimethyl-2,5-heptadiene-4-ol magnesium bromide which is then quenched with acetic acid to produce 3,5-dimethyl-2,5-hepadiene-4-ol.