scholarly journals Ruthenium process chemistry considerations: Redox process

1954 ◽  
Author(s):  
M.K. Harmon ◽  
C.G. McCormack ◽  
R.L. Moore ◽  
A.S. Wilson
Keyword(s):  
Redox Process ◽  
Process Chemistry

Process Chemistry Awards

2014 ◽  
Vol 18 (3) ◽  
pp. 359-359 ◽  
Author(s):  
Will Watson
Keyword(s):  
Process Chemistry

scholarly journals Preface: Modern Heterocycle Synthesis and Functionalization

Synlett ◽  
2021 ◽  
Vol 32 (02) ◽  
pp. 140-141
Author(s):  
Louis-Charles Campeau ◽  
Tomislav Rovis
Keyword(s):  
Active Pharmaceutical Ingredient ◽  
Associate Professor ◽  
Columbia University ◽  
State University ◽  
Heterocycle Synthesis ◽  
Colorado State University ◽  
University Of Toronto ◽  
Process Chemistry ◽  
The University ◽  
Small Molecule Therapeutics

obtained his PhD degree in 2008 with the late Professor Keith Fagnou at the University of Ottawa in Canada as an NSERC Doctoral Fellow. He then joined Merck Research Laboratories at Merck-Frosst in Montreal in 2007, making key contributions to the discovery of Doravirine (MK-1439) for which he received a Merck Special Achievement Award. In 2010, he moved from Quebec to New Jersey, where he has served in roles of increasing responsibility with Merck ever since. L.-C. is currently Executive Director and the Head of Process Chemistry and Discovery Process Chemistry organizations, leading a team of smart creative scientists developing innovative chemistry solutions in support of all discovery, pre-clinical and clinical active pharmaceutical ingredient deliveries for the entire Merck portfolio for small-molecule therapeutics. Over his tenure at Merck, L.-C. and his team have made important contributions to >40 clinical candidates and 4 commercial products to date. Tom Rovis was born in Zagreb in former Yugoslavia but was largely raised in southern Ontario, Canada. He earned his PhD degree at the University of Toronto (Canada) in 1998 under the direction of Professor Mark Lautens. From 1998–2000, he was an NSERC Postdoctoral Fellow at Harvard University (USA) with Professor David A. Evans. In 2000, he began his independent career at Colorado State University and was promoted in 2005 to Associate Professor and in 2008 to Professor. His group’s accomplishments have been recognized by a number of awards including an Arthur C. Cope Scholar, an NSF CAREER Award, a Fellow of the American Association for the Advancement of Science and a ­Katritzky Young Investigator in Heterocyclic Chemistry. In 2016, he moved to Columbia University where he is currently the Samuel Latham Mitchill Professor of Chemistry.

scholarly journals Structure of Plasma (re)Polymerized Polylactic Acid Films Fabricated by Plasma-Assisted Vapour Thermal Deposition

Materials ◽  
2021 ◽  
Vol 14 (2) ◽  
pp. 459
Author(s):  
Zdeněk Krtouš ◽  
Lenka Hanyková ◽  
Ivan Krakovský ◽  
Daniil Nikitin ◽  
Pavel Pleskunov ◽  
...  
Keyword(s):  
Polylactic Acid ◽  
Photoelectron Spectroscopy ◽  
Vapour Deposition ◽  
Chemical Vapour ◽  
Molecular Structures ◽  
Plasma Polymers ◽  
Thermal Deposition ◽  
X Ray ◽  
Process Chemistry ◽  
Precursor Molecules

Plasma polymer films typically consist of very short fragments of the precursor molecules. That rather limits the applicability of most plasma polymerisation/plasma-enhanced chemical vapour deposition (PECVD) processes in cases where retention of longer molecular structures is desirable. Plasma-assisted vapour thermal deposition (PAVTD) circumvents this limitation by using a classical bulk polymer as a high molecular weight “precursor”. As a model polymer in this study, polylactic acid (PLA) has been used. The resulting PLA-like films were characterised mostly by X-ray photoelectron spectroscopy (XPS) and nuclear magnetic resonance (NMR) spectroscopy. The molecular structure of the films was found to be tunable in a broad range: from the structures very similar to bulk PLA polymer to structures that are more typical for films prepared using PECVD. In all cases, PLA-like groups are at least partially preserved. A simplified model of the PAVTD process chemistry was proposed and found to describe well the observed composition of the films. The structure of the PLA-like films demonstrates the ability of plasma-assisted vapour thermal deposition to bridge the typical gap between the classical and plasma polymers.

Boron Reagents in Process Chemistry:  Excellent Tools for Selective Reductions

2006 ◽  
Vol 106 (7) ◽  
pp. 2617-2650 ◽  
Author(s):  
Elizabeth R. Burkhardt ◽  
Karl Matos
Keyword(s):  
Process Chemistry

Chemie polyfunktioneller Moleküle, 127 PPh2-Eliminierung aus dem PP-verknüpften Phosphazen Ph2P-N=PPh2-PPh2=N-PPh2 mit [C5H5Fe(CO)(μ-CO)]2; Kristallstrukturanalyse des Phosphazen-Derivats /Chemistry of Polyfunctional Molecules, 127 PPh2 Elimination from the PP Connected Phosphazene Ph2P-N=PPh2-PPh2=N-PPh2, with [C5H5Fe(CO)(μ-CO)]2; Crystal Structure of the Phosphazene Derivative

1997 ◽  
Vol 52 (7) ◽  
pp. 795-800 ◽  
Author(s):  
Jochen Ellermann ◽  
Martin Schütz ◽  
Frank W. Heinemann ◽  
Matthias Moll ◽  
Walter Bauer
Keyword(s):  
Crystal Structure ◽  
Structure Determination ◽  
Side Reaction ◽  
Redox Process ◽  
Crystal Structure Determination

Abstract The reaction of Ph2P-N=PPh2-PPh2=N-PPh2 (Ph = C6H5, 2) with [CpFe(CO)(μ-CO)]2 (Cp = C5H5, 3) yields under elimination of a PPh2-group from 2 and cleavage of the Fe-Fe bond in 3 the monocyclic ferraphosphazene complex Cp(OC) (4) and Ph2P-PPh2 (5). In a side reaction the P-P bond of 2 is also cleaved in a redox process to give Cp(OC) (7). Compound 4 has been characterized by a crystal structure determination.

Catalytic Annulation of Heterocycles via a Novel Redox Process Involving the Imidazolium Salt N-Heterocyclic Carbene Couple

2008 ◽  
Vol 27 (13) ◽  
pp. 3153-3160 ◽  
Author(s):  
Adrien T. Normand ◽  
Swee Kuan Yen ◽  
Han Vinh Huynh ◽  
T. S. Andy Hor ◽  
Kingsley J. Cavell
Keyword(s):  
Redox Process ◽  
Imidazolium Salt
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