ChemInform Abstract: Iridium-Catalyzed Coupling Reaction of Primary Alcohols with 1-Aryl-1-propynes Leading to Secondary Homoallylic Alcohols.

ChemInform ◽  
2009 ◽  
Vol 40 (49) ◽  
Author(s):  
Yasushi Obora ◽  
Shintaro Hatanaka ◽  
Yasutaka Ishii
2009 ◽  
Vol 11 (15) ◽  
pp. 3510-3513 ◽  
Author(s):  
Yasushi Obora ◽  
Shintaro Hatanaka ◽  
Yasutaka Ishii

2010 ◽  
Vol 16 (6) ◽  
pp. 1883-1888 ◽  
Author(s):  
Shintaro Hatanaka ◽  
Yasushi Obora ◽  
Yasutaka Ishii

2014 ◽  
Vol 136 (34) ◽  
pp. 11902-11905 ◽  
Author(s):  
Boyoung Y. Park ◽  
Khoa D. Nguyen ◽  
Mani Raj Chaulagain ◽  
Venukrishnan Komanduri ◽  
Michael J. Krische

2020 ◽  
Author(s):  
Tony Jin ◽  
Davis Kurdyla ◽  
Sabahudin Hrapovic ◽  
Alfred Leung ◽  
Sophie Régnier ◽  
...  

<p>Chitin nanocrystals (ChNCs) were prepared by partial cleavage of glycosidic bonds in chitin with concurrent oxidation of chitin C6 primary alcohols to produce carboxylate groups on the surface of the ChNCs. Following alkaline deacetylation of the ChNCs in the presence of NaBH<sub>4</sub> to inhibit “end-peeling” afforded chitosan nanocrystals (ChsNCs) with a degree of deacetylation (DDA) >80%. Transmission electron microscopy (TEM), X-ray diffraction (XRD) and Fourier-transform Infrared (FTIR) spectroscopy were used to determine the morphology and composition of these carboxylated ChNCs and ChsNCs. Subsequently, two methods were used to deposit Au onto the nanocrystals, and the catalytic activities of the resulting biomass-based nanocatalysts were tested for the 4-nitrophenol reduction and the aldehyde-amine-alkyne (A<sup>3</sup>) coupling reaction. In particular, Au nanoparticles over ChsNCs featured the highest turnover frequency value for the 4-nitrophenol reduction reported to date. Spectroscopic and imaging techniques confirmed the importance of controlling precisely the redox state of Au as it is being deposited to afford highly disperse active site on the bio-nano-support. </p>


ChemInform ◽  
2010 ◽  
Vol 41 (24) ◽  
pp. no-no
Author(s):  
Shintaro Hatanaka ◽  
Yasushi Obora ◽  
Yasutaka Ishii

RSC Advances ◽  
2016 ◽  
Vol 6 (102) ◽  
pp. 100554-100558 ◽  
Author(s):  
A. R. Sahoo ◽  
F. Jiang ◽  
C. Bruneau ◽  
G. V. M. Sharma ◽  
S. Suresh ◽  
...  

The association of the new phosphinepyridonate ligands along with an iridium metallic precursor resulted in the selective acetalization of various primary alcohols via a formal dehydrogenative coupling reaction.


Synlett ◽  
2017 ◽  
Vol 29 (06) ◽  
pp. 742-746 ◽  
Author(s):  
Masanari Kimura ◽  
Yasuyuki Mori ◽  
Chieko Shigeno ◽  
Ying Luo ◽  
Bun Chan ◽  
...  

Nickel catalyzes the multicomponent coupling reaction of terminal alkenes, carbon dioxide, and organoaluminum reagents, leading to the synthesis of homoallylic alcohols in moderate-to-good yields with excellent regio- and stereoselectivities.


2010 ◽  
Vol 12 (1) ◽  
pp. 1-3 ◽  
Author(s):  
Aurélien Denichoux ◽  
Takahide Fukuyama ◽  
Takashi Doi ◽  
Jiro Horiguchi ◽  
Ilhyong Ryu

ChemInform ◽  
2015 ◽  
Vol 46 (11) ◽  
pp. no-no
Author(s):  
Boyoung Y. Park ◽  
Khoa D. Nguyen ◽  
Mani Raj Chaulagain ◽  
Venukrishnan Komanduri ◽  
Michael J. Krische

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