描述了通过使用中间体(三甲基甲硅烷基)甲基烯丙醇来合成手性,非外消旋丁二烯基羰基醇。通过在催化量的CrCl 3或CrCl 2存在下用(4-溴丁-2-炔基)三甲基硅烷处理醛来获得烯丙醇。合成了几种新的三齿双(恶唑啉基)咔唑配体,并将其评估为手性来源。手性烯丙醇的合成可以实现良好的收率(58-88%)和对映选择性(55-78%ee)。可用TBAF或2 M HCl处理烯丙醇,以43-86%的收率提供所需的二烯。或者,当用N-碘代琥珀酰亚胺处理时,(三甲基甲硅烷基)甲基烯丙醇提供碘丁二烯基甲醇。
申请人:PnH tech (주)피엔에이치테크(120100135796) Corp. No ▼ 131111-0237931BRN ▼129-86-36614
公开号:KR20200022963A
公开(公告)日:2020-03-04
본 발명은 하기 [화학식 Ⅰ]로 표시되고, 높은 발광효율, 낮은 구동전압, 색순도, 안정성 및 장수명 특성을 갖는 유기발광소자를 구현할 수 있도록 소자의 정공주입층, 정공수송층 또는 광효율 개선층(Capping layer)에 적용할 수 있는 화합물과 이를 포함하는 유기발광소자에 관한 것이다. [화학식 Ⅰ]
Enantioselective synthesis of butadien-2-ylcarbinols via (silylmethyl)allenic alcohols from chromium-catalyzed additions to aldehydes utilizing chiral carbazole ligands
作者:María Durán-Galván、Shilpa A. Worlikar、Brian T. Connell
DOI:10.1016/j.tet.2010.07.065
日期:2010.9
alcohols are obtained by treatment of aldehydes with (4-bromobut-2-ynyl)trimethylsilane in the presence of a catalytic amount of CrCl3 or CrCl2. Several new tridentate bis(oxazolinyl)carbazole ligands were synthesized and evaluated as the source of chirality. The synthesis of chiral allenic alcohols can be achieved in good yields (58–88%) and enantioselectivities (55–78% ee). Allenic alcohols may be
描述了通过使用中间体(三甲基甲硅烷基)甲基烯丙醇来合成手性,非外消旋丁二烯基羰基醇。通过在催化量的CrCl 3或CrCl 2存在下用(4-溴丁-2-炔基)三甲基硅烷处理醛来获得烯丙醇。合成了几种新的三齿双(恶唑啉基)咔唑配体,并将其评估为手性来源。手性烯丙醇的合成可以实现良好的收率(58-88%)和对映选择性(55-78%ee)。可用TBAF或2 M HCl处理烯丙醇,以43-86%的收率提供所需的二烯。或者,当用N-碘代琥珀酰亚胺处理时,(三甲基甲硅烷基)甲基烯丙醇提供碘丁二烯基甲醇。