Ytterbium perfluorooctanesulfonate catalyzed synthesis of acylals from aldehydes and acetic anhydride in a fluorous biphasic system

2006 ◽  
Vol 84 (11) ◽  
pp. 1563-1566 ◽  
Author(s):  
Wen-Bin Yi ◽  
Ya-Qing Yin ◽  
Chun Cai
Keyword(s):  
Acetic Anhydride ◽  
Significant Loss ◽  
Biphasic System ◽  
Efficient Synthesis ◽  
Biphasic Catalysis ◽  
Highly Efficient ◽  
Fluorous Biphasic Catalysis

Ytterbium perfluorooctanesulfonate [Yb(OPf)3] catalyses the highly efficient synthesis of acylals from aldehydes and acetic anhydride in a fluorous biphase system (FBS) composed of toluene and perfluorodecalin. The fluorous phase containing the fluorous catalyst is easily separated and can be reused several times without significant loss of catalytic activity.Key words: acylals, ytterbium perfluorooctanesulfonate, fluorous biphasic catalysis.

scholarly journals LiHSO4/SiO2as a New, Efficient and Reusable Catalytic System for the Chemoselective Conversion of Aldehydes to Acylals under Solvent-Free Conditions

2009 ◽  
Vol 6 (s1) ◽  
pp. S390-S396 ◽  
Author(s):  
Abdolkarim Zare ◽  
Alireza Hasaninejad ◽  
Esmael Rostami ◽  
Ahmad Reza Moosavi-Zare ◽  
Maria Merajoddin ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Acetic Anhydride ◽  
Catalytic System ◽  
Catalytic Amount ◽  
Significant Loss ◽  
Solvent Free ◽  
Reaction Conditions ◽  
Highly Efficient ◽  
Solvent Free Conditions

A highly efficient, green and expeditious solvent-free method is described for the chemoselective conversion of aldehydes to the corresponding acylals in excellent yields, using acetic anhydride in the presence of catalytic amount (20 mol%) of silica-supported LiHSO4. Ketones does not react under these reaction conditions. LiHSO4/SiO2can be recovered and reused without any significant loss of its catalytic activity.

Highly efficient conversion of carbohydrates into 5-hydroxymethylfurfural using the bi-functional CrPO4 catalyst

RSC Advances ◽  
2016 ◽  
Vol 6 (10) ◽  
pp. 8048-8052 ◽  
Author(s):  
Siquan Xu ◽  
Xiaopei Yan ◽  
Quan Bu ◽  
Haian Xia
Keyword(s):  
Biphasic System ◽  
Efficient Synthesis ◽  
Efficient Conversion ◽  
Highly Efficient ◽  
System P

The highly efficient synthesis of 5-hydroxymethylfurfural (HMF) from carbohydrates was achieved using the inexpensive and bi-functional CrPO4 catalyst in a biphasic system.

Highly efficient synthesis of methyl ethyl ketone oxime through ammoximation over Ti-MOR catalyst

2014 ◽  
Vol 34 (1) ◽  
pp. 243-250
Author(s):  
Jianghong DING ◽  
Le XU ◽  
Hao XU ◽  
Haihong WU ◽  
Yueming LIU ◽  
...  
Keyword(s):  
Methyl Ethyl Ketone ◽  
Methyl Ethyl ◽  
Efficient Synthesis ◽  
Highly Efficient

Advanced Heterocyclic Branched Semiconducting Units - Highly Efficient Synthesis and Physicochemical Characteristic

2013 ◽  
Vol 17 (3) ◽  
pp. 283-295 ◽  
Author(s):  
Jadwiga Soloducho ◽  
Joanna Cabaj ◽  
Kamila Olech ◽  
Przemyslaw Data ◽  
Mieczyslaw Lapkowski
Keyword(s):  
Physicochemical Characteristic ◽  
Efficient Synthesis ◽  
Highly Efficient

Highly Efficient Synthesis of Clean Biofuels from Biomass Using FeCuZnAlK Catalyst

2011 ◽  
Vol 24 (6) ◽  
pp. 745-752 ◽  
Author(s):  
Song-bai Qiu ◽  
Yong Xu ◽  
Tong-qi Ye ◽  
Fei-yan Gong ◽  
Zhi Yang ◽  
...  
Keyword(s):  
Efficient Synthesis ◽  
Highly Efficient

Sustainable production of γ-valerolactone and δ-valerolactone through the coupling of hydrogenation and dehydrogenation

2021 ◽  
Author(s):  
Hongxing Wang ◽  
Guoqiang Ding ◽  
Xianqing Li ◽  
Haohao She ◽  
Yulei Zhu ◽  
...  
Keyword(s):  
Sustainable Production ◽  
Efficient Synthesis ◽  
Highly Efficient ◽  
Catalytic Processes ◽  
Lignocellulose Biomass

γ-valerolactone (GVL) and δ-valerolactone (DVL) are valuable chemicals that can be obtained by catalytic processes from nonedible lignocellulose biomass. However, highly efficient synthesis of GVL and DVL in an environmentally...

Highly efficient synthesis of 5-hydroxymethylfurfural with carbohydrates over renewable cyclopentanone-based acidic resin

2017 ◽  
Vol 19 (8) ◽  
pp. 1855-1860 ◽  
Author(s):  
Hao Tang ◽  
Ning Li ◽  
Fang Chen ◽  
Guangyi Li ◽  
Aiqin Wang ◽  
...  
Keyword(s):  
Reusable Catalyst ◽  
Efficient Synthesis ◽  
Highly Efficient ◽  
Acidic Resin

A sulfated cyclopentanone-formaldehyde condensate was found to be an effective and reusable catalyst for the dehydration of fructose to 5-hydroxymethylfurfural (HMF).

ChemInform Abstract: Highly Efficient Synthesis of 2,3-Dihydroquinazolin-4(1H)-ones Catalyzed by Heteropoly Acids in Water.

ChemInform ◽  
2010 ◽  
Vol 41 (45) ◽  
pp. no-no
Author(s):  
YingXiao Zong ◽  
Yan Zhao ◽  
WenCai Luo ◽  
Xing Hai Yu ◽  
Jun Ke Wang ◽  
...  
Keyword(s):  
Heteropoly Acids ◽  
Efficient Synthesis ◽  
Highly Efficient
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