BippyPhos: A Single Ligand With Unprecedented Scope in the Buchwald–Hartwig Amination of (Hetero)aryl Chlorides
作者:Sarah M. Crawford、Christopher B. Lavery、Mark Stradiotto
DOI:10.1002/chem.201302453
日期:2013.12.2
demonstrating the largest scope in the NH‐containing coupling partner reported for a single Pd/ligand catalyst system. We also established BippyPhos/[Pd(cinnamyl)Cl]2 as exhibiting the broadest demonstrated substrate scope for metal‐catalyzed cross‐coupling of (hetero)aryl chlorides with NH indoles. Furthermore, the remarkable ability of BippyPhos/[Pd(cinnamyl)Cl]2 to catalyze both the selective monoarylation
Protective coating compositions, systems, and methods
申请人:Silvers Gary
公开号:US20060025511A1
公开(公告)日:2006-02-02
The invention relates to elastomeric compositions for use as temporary or semi-permanent protective coatings. The coatings are particularly useful to protect objects in transit. In certain embodiments, the compositions are based on monomer units of isoprene or isoprene derivatives. Preferably, the compositions include a reinforcement agent encapsulated in the polymer to reinforce the polymer structure, making it more resistant to environmental conditions, including heat and chemicals. Example reinforcement agents include particles of clays, ceramics, and/or nano-particles.
[EN] PROTECTIVE COATING COMPOSITIONS, SYSTEMS, AND METHODS<br/>[FR] COMPOSITIONS DE REVETEMENTS PROTECTEURS ET SYSTEMES ET PROCEDES ASSOCIES
申请人:MEGUIAR S INC
公开号:WO2004046228A1
公开(公告)日:2004-06-03
The invention relates to elastomeric compositions for use as temporary or semi-permanent protective coatings. The coatings are particularly useful to protect objects in transit. In certain embodiments, the compositions are based on monomer units of isoprene or isoprene derivatives. Preferably, the compositions include a reinforcement agent encapsulated in the polymer to reinforce the polymer structure, making it more resistant to environmental conditions, including heat and chemicals. Example reinforcement agents include particles of clays, ceramics, and/or nano-particles.
Rational and Predictable Chemoselective Synthesis of Oligoamines via Buchwald–Hartwig Amination of (Hetero)Aryl Chlorides Employing Mor-DalPhos
作者:Bennett J. Tardiff、Robert McDonald、Michael J. Ferguson、Mark Stradiotto
DOI:10.1021/jo202358p
日期:2012.1.20
We report a diverse demonstration of synthetically useful chemoselectivity in the synthesis of di-, tri-, and tetraamines (62 examples) by use of Buchwald–Hartwig amination employing a single catalyst system ([Pd(cinnamyl)Cl]2/L1; L1 = N-(2-(di(1-adamantyl)phosphino)phenyl)morpholine, Mor-DalPhos). Competition reactions established the following relative preference of this catalyst system for amine