CuO/SiO2: a simple and efficient solid acid catalyst for epoxide ring opening

2011 ◽  
Vol 13 (3) ◽  
pp. 545 ◽  
Author(s):  
Federica Zaccheria ◽  
Federica Santoro ◽  
Rinaldo Psaro ◽  
Nicoletta Ravasio
Keyword(s):  
Ring Opening ◽  
Solid Acid ◽  
Solid Acid Catalyst ◽  
Acid Catalyst ◽  
Epoxide Ring ◽  
Epoxide Ring Opening

ChemInform Abstract: CuO/SiO2: A Simple and Efficient Solid Acid Catalyst for Epoxide Ring Opening.

ChemInform ◽  
2011 ◽  
Vol 42 (29) ◽  
pp. no-no
Author(s):  
Federica Zaccheria ◽  
Federica Santoro ◽  
Rinaldo Psaro ◽  
Nicoletta Ravasio
Keyword(s):  
Ring Opening ◽  
Solid Acid ◽  
Solid Acid Catalyst ◽  
Acid Catalyst ◽  
Epoxide Ring ◽  
Epoxide Ring Opening

Ring-opening Polymerization of Oxetane Initiated with Solid-acid Catalyst Based on Heteropolyacid Salt

2013 ◽  
Vol 42 (7) ◽  
pp. 747-749 ◽  
Author(s):  
Hisatoyo Morinaga ◽  
Yoshihito Nishioka ◽  
Mao Hatayama ◽  
Hirotoshi Nakabayashi
Keyword(s):  
Ring Opening ◽  
Solid Acid ◽  
Solid Acid Catalyst ◽  
Acid Catalyst ◽  
Ring Opening Polymerization

Graphite oxide: a simple and efficient solid acid catalyst for the ring-opening of epoxides by alcohols

2014 ◽  
Vol 55 (49) ◽  
pp. 6694-6697 ◽  
Author(s):  
Maryam Mirza-Aghayan ◽  
Mahdi Alizadeh ◽  
Mahdieh Molaee Tavana ◽  
Rabah Boukherroub
Keyword(s):  
Graphite Oxide ◽  
Ring Opening ◽  
Solid Acid ◽  
Solid Acid Catalyst ◽  
Acid Catalyst ◽  
Ring Opening Of Epoxides

ChemInform Abstract: Graphite Oxide: A Simple and Efficient Solid Acid Catalyst for the Ring-Opening of Epoxides by Alcohols.

ChemInform ◽  
2015 ◽  
Vol 46 (16) ◽  
pp. no-no
Author(s):  
Maryam Mirza-Aghayan ◽  
Mahdi Alizadeh ◽  
Mahdieh Molaee Tavana ◽  
Rabah Boukherroub
Keyword(s):  
Graphite Oxide ◽  
Ring Opening ◽  
Solid Acid ◽  
Solid Acid Catalyst ◽  
Acid Catalyst ◽  
Ring Opening Of Epoxides

scholarly journals Zirconium triflate grafted on SBA-15 as a highly efficient solid acid catalyst for ring opening of epoxides by amines and alcohols

2017 ◽  
Vol 38 (4) ◽  
pp. 758-766 ◽  
Author(s):  
Kamlesh N. Tayade ◽  
Lianyue Wang ◽  
Sensen Shang ◽  
Wen Dai ◽  
Manish Mishra ◽  
...  
Keyword(s):  
Ring Opening ◽  
Solid Acid ◽  
Solid Acid Catalyst ◽  
Acid Catalyst ◽  
Highly Efficient ◽  
Ring Opening Of Epoxides

scholarly journals Regio- and stereoselective synthesis of new diaminocyclopentanols

2014 ◽  
Vol 10 ◽  
pp. 2513-2520 ◽  
Author(s):  
Evgeni A Larin ◽  
Valeri S Kochubei ◽  
Yuri M Atroshchenko
Keyword(s):  
Nitrogen Atom ◽  
Ring Opening ◽  
Stereoselective Synthesis ◽  
Alternative Pathway ◽  
Acid Catalyst ◽  
Epoxide Ring ◽  
Optimal Conditions ◽  
Epoxide Ring Opening ◽  
Lewis Acid Catalyst ◽  
Nucleophilic Reagents

The optimal conditions for regio- and stereoselective epoxide ring opening of N,N-disubstituted 1,2-epoxy-3-aminocyclopentanes by different nucleophilic reagents have been developed. The substituents on the nitrogen atom in the epoxide precursor and the orientation of the oxirane ring are crucial for the reaction outcome. Thus, treatment of (1RS,2SR,3SR)-1,2-epoxy-3-(N,N-dibenzylamino)cyclopentane (3b) with amines gave a mixture of C1 and C2 regioadducts, while the use of (1RS,2SR,3SR)-1,2-epoxy-3-(N-benzyl-N-methylamino)cyclopentane (3a) led ultimately to C1 adducts. Base-catalyzed aminolysis of epoxides 6a,b afforded mainly C1 adducts 13a,b arising from trans-diaxal opening of the epoxide ring. Using a Lewis acid catalyst, epoxides 6a,b were transformed into diaminocyclopentanols 14a,b via an alternative pathway involving the formation of aziridinium intermediate 17.

Post-synthesis of Zr-MOR as a robust solid acid catalyst for the ring-opening aminolysis of epoxides

2018 ◽  
Vol 42 (16) ◽  
pp. 13503-13511 ◽  
Author(s):  
Bo Tang ◽  
Wei-Chao Song ◽  
Sheng-Yang Li ◽  
En-Cui Yang ◽  
Xiao-Jun Zhao
Keyword(s):  
Ring Opening ◽  
Solid Acid ◽  
Solid Acid Catalyst ◽  
Acid Catalyst ◽  
Synthesis Strategy ◽  
Post Synthesis

Zirconosilicate with the MOR topology (Zr-MOR) was successfully prepared using a two-step post-synthesis strategy from pre-dealumination of a H-MOR zeolite and subsequent dry impregnation of Cp2ZrCl2.

Niobic acid as a solid acid catalyst for ring-opening reactions of phenyloxirane

1990 ◽  
Vol 8 (1) ◽  
pp. 123-132 ◽  
Author(s):  
Taka-aki Hanaoka ◽  
Kazuhiko Takeuchi ◽  
Takehiko Matsuzaki ◽  
Yoshihiro Sugi
Keyword(s):  
Ring Opening ◽  
Solid Acid ◽  
Solid Acid Catalyst ◽  
Acid Catalyst ◽  
Ring Opening Reactions ◽  
Niobic Acid
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