Novel aryl silicon and aryl germanium host materials are described. These compounds improve OLED device performance when used as hosts in the emissive layer of the OLED.
METHOD FOR PREPARING BORINIC ACID DERIVATIVES AND NOVEL BORINIC ACID DERIVATIVES
申请人:MANAC INC.
公开号:US20150105562A1
公开(公告)日:2015-04-16
The present invention relates to a method for preparing borinic acid derivatives and novel borinic acid derivatives. The preparing method of the present invention provides borinic acid derivatives of general formula (2):
(Ar
2
B(OH) (2)
wherein
Ar is the same as defined in the description and claims, selectively and in a high yield by reacting a compound of general formula (1):
Ar-M, (1)
wherein
Ar and M are the same as defined in the description and claims, with tri-t-butyl borate and then hydrolyzing the reaction product.
Enantioselective Imine Reduction Catalyzed by Phosphenium Ions
作者:Travis Lundrigan、Erin N. Welsh、Toren Hynes、Chieh-Hung Tien、Matt R. Adams、Kayelani R. Roy、Katherine N. Robertson、Alexander W. H. Speed
DOI:10.1021/jacs.9b07293
日期:2019.9.11
The first use of phosphenium cations in asymmetric catalysis is reported. A diazaphosphenium triflate, prepared in two or three steps on a multi-gram scale from commercially available materials catalyzes the hydroboration or hydrosilation of cyclic imines with enantiomeric ratios of up to 97:3. Catalyst loadings are as low as 0.2 mole percent. Twenty-two aryl/heteroaryl pyrrolidines and piperidines
Novel aryl silicon and aryl germanium host materials are described. These compounds improve OLED device performance when used as hosts in the emissive layer of the OLED.
METHOD FOR PRODUCING BORINIC ACID DERIVATIVE, AND NOVEL BORINIC ACID DERIVATIVE
申请人:Manac Inc.
公开号:EP2886548A1
公开(公告)日:2015-06-24
The present invention relates to a method for preparing borinic acid derivatives and novel borinic acid derivatives. The preparing method of the present invention provides borinic acid derivatives of general formula (2):
wherein
Ar is the same as defined in the description and claims, selectively and in a high yield by reacting a compound of general formula (1):
Ar-M (1)
wherein
Ar and M are the same as defined in the description and claims, with tri-t-butyl borate and then hydrolyzing the reaction product.
本发明涉及一种制备硼酸衍生物和新型硼酸衍生物的方法。本发明的制备方法提供通式(2)的硼酸衍生物:
其中
Ar与说明书和权利要求书中定义的相同,通过与通式(1)的化合物反应,选择性地和高产率地获得:
Ar-M (1)
其中
Ar 和 M 与说明和权利要求中定义的相同,与硼酸三叔丁酯反应,然后水解反应产物。