scholarly journals C–H Borylation by Platinum Catalysis

2017 ◽  
Vol 90 (3) ◽  
pp. 332-342 ◽  
Author(s):  
Takayuki Furukawa ◽  
Mamoru Tobisu ◽  
Naoto Chatani
Keyword(s):  
Platinum Catalysis

Mercury-promotion of platinum catalysis of dehydrogenation and dehydrochlorination

1987 ◽  
Vol 29 (2) ◽  
pp. 193-201 ◽  
Author(s):  
G.C. Georgiades ◽  
S.J. McCarthy ◽  
P.A. Sermon
Keyword(s):  
Platinum Catalysis

scholarly journals Expedient synthesis of E-hydrazone esters and 1H-indazole scaffolds through heterogeneous single-atom platinum catalysis

2019 ◽  
Vol 5 (12) ◽  
pp. eaay1537 ◽  
Author(s):  
Cuibo Liu ◽  
Zhongxin Chen ◽  
Huan Yan ◽  
Shibo Xi ◽  
Kah Meng Yam ◽  
...  
Keyword(s):  
Density Functional ◽  
Stereoselective Synthesis ◽  
Density Functional Theory Calculations ◽  
Building Blocks ◽  
Hydrogenation Reaction ◽  
Biologically Active ◽  
Single Atom ◽  
One Pot ◽  
Platinum Catalysis ◽  
Scalable Synthesis

Unprotected E-hydrazone esters are prized building blocks for the preparation of 1H-indazoles and countless other N-containing biologically active molecules. Despite previous advances, efficient and stereoselective synthesis of these compounds remains nontrivial. Here, we show that Pt single atoms anchored on defect-rich CeO2 nanorods (Pt1/CeO2), in conjunction with the alcoholysis of ammonia borane, promotes exceptionally E-selective hydrogenation of α-diazoesters to afford a wide assortment of N-H hydrazone esters with an overall turnover frequency of up to 566 hours−1 upon reaction completion. The α-diazoester substrates could be generated in situ from readily available carboxylic esters in one-pot hydrogenation reaction. Utility is demonstrated through concise, scalable synthesis of 1H-indazole–derived pharmaceuticals and their 15N-labeled analogs. The present protocol highlights a key mechanistic nuance wherein simultaneous coordination of a Pt site with the diazo N═N and ester carbonyl motifs plays a central role in controlling stereoselectivity, which is supported by density functional theory calculations.

The Effect of Nickel and Platinum Catalysis on Endothermic Fuel for Regenerative Cooling System

2017 ◽  
Vol 65 (2) ◽  
pp. 41-46
Author(s):  
Toru TSUKANO ◽  
Daisuke MAEDA ◽  
Yousuke SASAYAMA ◽  
Daisuke NAKATA ◽  
Masatoshi SUGIOKA ◽  
...  
Keyword(s):  
Cooling System ◽  
Regenerative Cooling ◽  
Platinum Catalysis

Platinum Catalysis Revisited—Unraveling Principles of Catalytic Olefin Hydrosilylation

ACS Catalysis ◽  
2016 ◽  
Vol 6 (2) ◽  
pp. 1274-1284 ◽  
Author(s):  
Teresa K. Meister ◽  
Korbinian Riener ◽  
Peter Gigler ◽  
Jürgen Stohrer ◽  
Wolfgang A. Herrmann ◽  
...  
Keyword(s):  
Platinum Catalysis
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