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Conversion of triose sugars with alcohols to alkyl lactates catalyzed by Brønsted acid tin ion-exchanged montmorillonite
- Jiacheng Wang, Y. Masui, M. Onaka
- Chemistry
- 31 August 2011
Unique structural characteristics of tin hydroxide nanoparticles-embedded montmorillonite (Sn-Mont) demonstrating efficient acid catalysis for various organic reactions
- Y. Masui, Jiacheng Wang, K. Teramura, T. Kogure, Tsunehiro Tanaka, M. Onaka
- Chemistry
- 1 November 2014
Chlorination of Benzylic and Allylic Alcohols with Trimethylsilyl Chloride Enhanced by Natural Sodium Montmorillonite
- Michael Andreas Tandiary, Y. Masui, M. Onaka
- Chemistry
- 15 October 2014
A new and practical method for the efficient chlorination of tertiary, secondary, and primary benzylic and allylic alcohols is described. The method is characterized by the formation of hydrogen…
Direct Synthesis of Nitriles from Alcohols with Trialkylsilyl Cyanide Using Brønsted Acid Montmorillonite Catalysts
- Jiacheng Wang, Y. Masui, M. Onaka
- Chemistry
- 29 March 2011
We reported a simple protocol for nitrile synthesis by the direct cyanation of various secondary/tertiary benzylic and allylic alcohols with trialkylsilyl cyanide (TASCN) with moderate to excellent…
H-type Zeolite-Catalyzed 1,4-Addition of Benzene Derivatives to Labile Acrolein
- D. Hayashi, T. Narisawa, Y. Masui, M. Onaka
- Chemistry
- 8 January 2016
The 1,4-addition of benzene derivatives to acrolein is a straightforward way to synthesize 3-arylpropanals. A survey of acid catalysts for the 1,4-addition of methoxy-substituted benzenes to acrole...
Nickel-supported carbon nitride photocatalyst combined with organic dye for visible-light-driven hydrogen evolution from water.
- K. Mori, Taiki Itoh, H. Yamashita
- ChemistryPhysical chemistry chemical physics : PCCP
- 16 September 2015
TLDR
A combination of trimethylsilyl chloride and hydrous natural montmorillonite clay: an efficient solid acid catalyst for the azidation of benzylic and allylic alcohols with trimethylsilyl azide
- Michael Andreas Tandiary, Y. Masui, M. Onaka
- Chemistry
- 30 January 2015
We present a new procedure to convert in situ natural montmorillonite clay into a partially acidified one using a catalytic amount of trimethylsilyl chloride and trace water. We demonstrate that the…
Highly Efficient Cyanosilylation of Sterically Bulky Ketones Catalyzed by Tin Ion‐Exchanged Montmorillonite
- Jiacheng Wang, Y. Masui, K. Watanabe, M. Onaka
- Chemistry
- 1 March 2009
Tin ion-exchanged montmorillonite (Sn- Mont) was found to be a powerful catalyst for the cyanosilylation of aromatic and aliphatic ketones having a carbonyl group in sterically congested…
Lewis Acid Modified Mesoporous Alumina: A New Catalyst Carrier for Methyltrioxorhenium in Metathesis of Olefins Bearing Functional Groups.
- T. Oikawa, Y. Masui, Tsunehiro Tanaka, Y. Chujo, M. Onaka
- Chemistry
- 1 May 2007
Coordination Behaviors of Diphenylketene Adsorbed in the Nanocages of Zeolite NaY and AgY
- Shintaro Shibata, Y. Masui, M. Onaka
- Chemistry
- 14 March 2020
We investigated in detail how polar cumulene molecules like diphenylketene were accommodated in faujasite zeolite pores based on 13C CP/MAS and DD/MAS NMR analyses as well as quantum chemical calcu...
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