TRI-FUNCTIONAL UV-ABSORBING COMPOUNDS AND USE THEREOF
申请人:Domschke Angelika Maria
公开号:US20100168359A1
公开(公告)日:2010-07-01
Described herein are tri-functional compounds useful in the production of ophthalmic lenses. The compounds are composed of UV absorber having a polymerization initiator directly or indirectly bonded to the ultraviolet absorber, and an olefinic group directly or indirectly bonded to the ultraviolet absorber. Also described herein are polymers and ophthalmic lenses produced from the tri-functional compounds described herein.
Base-Promoted/Gold-Catalyzed Intramolecular Highly Selective and Controllable Detosylative Cyclization
作者:Chenghao Zhu、Lin Qiu、Guangyang Xu、Jian Li、Jiangtao Sun
DOI:10.1002/chem.201502073
日期:2015.9.7
controllable and synthetically useful base‐promoted intramolecular detosylative cyclization of bis‐N‐tosylhydrazones has been achieved, affording N‐containing heterocycles and cyclic olefins under transition‐metal‐free or gold‐catalyzed procedures, respectively. Moreover, an effective and practical metal‐free or gold‐catalyzed approach to synthesize polycyclic aromatic compounds is also reported.
Copper-Catalyzed Oxidative C–O Bond Formation of 2-Acyl Phenols and 1,3-Dicarbonyl Compounds with Ethers: Direct Access to Phenol Esters and Enol Esters
作者:Jihye Park、Sang Hoon Han、Satyasheel Sharma、Sangil Han、Youngmi Shin、Neeraj Kumar Mishra、Jong Hwan Kwak、Cheong Hoon Lee、Jeongmi Lee、In Su Kim
DOI:10.1021/jo500576x
日期:2014.5.16
A copper-catalyzed oxidative coupling of 2-carbonyl-substituted phenols and 1,3-dicarbonyl compounds with a wide range of dibenzyl or dialkyl ethers is described. This protocol provides an efficient preparation of phenol esters and enol esters in good yields with high chemoselectivity. This method represents an alternative protocol for classical esterification reactions.
2 Methoxy antimycin a derivatives and methods of use
申请人:Hockenbery M. David
公开号:US20050239873A1
公开(公告)日:2005-10-27
Disclosed are 2-methoxy antimycin derivatives or analogs that modulate apoptosis by binding to the hydrophobic groove of a Bcl-2 family member protein (e.g., Bcl-2 or BCl-x
L
). The 2-methoxy antimycin derivatives or analogs are used in disclosed methods for treating apoptosis-associated diseases such as, for example, neoplastic disease (e.g., cancer) or other proliferative diseases associated with the over-expression of a Bcl-2 family member protein.
Studien zur Chemie der 1,4-Oxazine, 7. Mitt. Synthese von 1,4-Oxazinen aus 3-Oxa-1,5-dioxo-Verbindungen
作者:Herbert Bartsch
DOI:10.1002/ardp.19823150806
日期:——
Die Reaktion von 3 mit NH3/Ethanol liefert bei 20° 4, das durch verschiedene Methoden zu 5 cyclisiert werden kann. 5 wird auch auf direktem Weg aus 3 bei 80° erhalten. Versuche, durch partielle Reduktion von 4 zu 6 zu gelangen, liefern 7. Erhitzen von 5 mit Acetanhydrid/Pyridin führt zu 12, das zu 13 reduziert wird. 17 reagiert mit NH3/Ethanol zu 18, während unter reduktiven Bedingungen 19 entsteht