[EN] METHODS FOR PHOSPHINE OXIDE REDUCTION IN CATALYTIC WITTIG REACTIONS<br/>[FR] PROCÉDÉS POUR LA RÉDUCTION D'UN OXYDE DE PHOSPHINE DANS DES RÉACTIONS DE WITTIG CATALYTIQUES
申请人:UNIV DUBLIN CITY
公开号:WO2014140353A1
公开(公告)日:2014-09-18
A method for increasing the rate of phosphine oxide reduction, preferably during a Wittig reaction comprising use of an acid additive is provided. A room temperature catalytic Wittig reaction (CWR) the rate of reduction of the phosphine oxide is increased due to the addition of the acid additive is described. Furthermore, the extension of the CWR to semi-stabilized and non-stabilized ylides has been accomplished by utilization of a masked base and/or ylide-tuning.
Breaking the Ring through a Room Temperature Catalytic Wittig Reaction
作者:Christopher J. O'Brien、Florie Lavigne、Emma E. Coyle、Andrew J. Holohan、Bryan J. Doonan
DOI:10.1002/chem.201300546
日期:2013.5.3
One ring no longer rules them all: Employment of 2.5–10 mol % of 4‐nitrobenzoic acid with phenylsilane led to the development of a room temperature catalytic Wittig reaction (see scheme). Moreover, these enhanced reduction conditions also facilitated the use of acyclic phosphineoxides as catalysts for the first time. A series of alkenes were produced in moderate to high yield and selectivity.
Embodiments in accordance with the present invention provide for norbornane-type ballast materials, norbornane-type photoactive compounds derived from such ballast materials and alkali-soluble positive-tone polymer compositions that encompass such norbornane-type photoactive compounds and one of a PBO or PNB resin.
PYRROL-1-YL BENZOIC ACID DERIVATIVES USEFUL AS MYC INHIBITORS
申请人:DANA-FARBER CANCER INSTITUTE, INC.
公开号:US20150291521A1
公开(公告)日:2015-10-15
The present invention provides compounds of Formula (I-A), (I-B), and (I-C), pharmaceutically acceptable salts thereof, and pharmaceutical compositions thereof. Compounds of the present invention are useful for inhibiting Myc (e.g., c-Myc) activity. The present invention further provides methods of using the compounds described herein for treating Myc-mediated disorders (e.g., cancer and other proliferative diseases). The present invention also provides assays for identifying Myc inhibitors.
METHODS FOR PHOSPHINE OXIDE REDUCTION IN CATALYTIC WITTIG REACTIONS
申请人:DUBLIN CITY UNIVERSITY
公开号:US20160016860A1
公开(公告)日:2016-01-21
A method for increasing the rate of phosphine oxide reduction, preferably during a Wittig reaction comprising use of an acid additive is provided. A room temperature catalytic Wittig reaction (CWR) the rate of reduction of the phosphine oxide is increased due to the addition of the acid additive is described. Furthermore, the extension of the CWR to semi-stabilized and non-stabilized ylides has been accomplished by utilization of a masked base and/or ylide-tuning.