CAS: 26608-06-0; 3-Bromodibenzo[b,D]Furan

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二苯并呋喃置于氢溴酸,硝酸,铁粉,氯化铵,三氟乙酸,Sodium Nitrite体系中,用 水,异丙醇 用作溶剂,化学反应 19.0H,反应生成3-溴二苯并[b,D]呋喃
参考文献:新規なトリアジン化合物,それを用いた有機電子素子及び植物栽培用照明
标题:新規なトリアジン化合物,それを用いた有機電子素子及び植物栽培用照明
摘要:三重态能级较高,耐热性优异,在作为有机电子元件材料时,提供能实现元件高效化,低电压化,长寿命化的三嗪化合物.具体结构如下一般式〔1〕所示,其中三嗪骨架部分与二苯并呋喃或二苯并噻吩骨架部分通过联结苯骨架部分而成的三嗪化合物.其中,x为氧原子或硫原子.[选择图]无

专利信息

专利号:US-5739360-A
优先权日:1995-09-22
标题 :Intermediates for the synthesis of bisphosphine compounds
发明人：SIRGES WOLFRAM; LAUE CHRISTIAN; ARLT DIETER; GROSSER ROLF
权利人:BAYER AG
摘要:The invention relates to novel bisphosphonates and to processes for their preparation and for their resolution into the enantiomers. The bisphosphonates according to the invention are valuable intermediates for the preparation of bisphosphine compounds, especially chiral bisphosphine ligands. These in turn are constituents of transition metal complexes which are used as catalysts inter alia in asymmetric hydrogenation. n The novel bisphosphonates have the general formula (I) ##STR1## in which R 1 is linear or branched alkyl having up to 6 carbon atoms, aryl or aralkyl, each of which can optionally be substituted, or two radicals R 1 together are a bridging hydrocarbon radical having up to 6 carbon atoms, n and can exist in the form of their racemates or as enantiomers.

专利号:EP-0764652-A1
优先权日:1995-09-22
标题 :Novel intermediates for the synthesis of bisphosphine compounds

专利号:DE-19535243-A1
优先权日:1995-09-22
标 题:New intermediates for the synthesis of bisphosphine compounds

专利号:EP-0764652-B1
优先权日:1995-09-22
标 题 :Novel intermediates for the synthesis of bisphosphine compounds