Reuse of chiral cationic Pd–phosphinooxazolidine catalysts in ionic liquids: highly efficient catalytic asymmetric Diels–Alder reactions

2007 ◽  
pp. 263-265 ◽  
Author(s):  
Kouichi Takahashi ◽  
Hiroto Nakano ◽  
Reiko Fujita
Keyword(s):  
Ionic Liquids ◽  
Diels Alder ◽  
Highly Efficient ◽  
Catalytic Asymmetric

Chiral Cationic Pd-Phosphinooxazolidine Catalysts for a Highly Efficient Asymmetric Diels-Alder Reaction in Ionic Liquids

Heterocycles ◽  
2008 ◽  
Vol 76 (1) ◽  
pp. 381 ◽  
Author(s):  
Hiroto Nakano ◽  
Mitsuhiro Takeshita ◽  
Yasuhiro Nishiuchi ◽  
Kouichi Takahashi ◽  
Reiko Fujita ◽  
...  
Keyword(s):  
Ionic Liquids ◽  
Alder Reaction ◽  
Diels Alder ◽  
Highly Efficient ◽  
Diels Alder Reaction

ChemInform Abstract: Chiral Cationic Pd-Phosphinooxazolidine Catalysts for a Highly Efficient Asymmetric Diels-Alder Reaction in Ionic Liquids.

ChemInform ◽  
2009 ◽  
Vol 40 (10) ◽  
Author(s):  
Hiroto Nakano ◽  
Yasuhiro Nishiuchi ◽  
Kouichi Takahashi ◽  
Reiko Fujita ◽  
Koji Uwai ◽  
...  
Keyword(s):  
Ionic Liquids ◽  
Alder Reaction ◽  
Diels Alder ◽  
Highly Efficient ◽  
Diels Alder Reaction

Highly Efficient and Selective Addition of Hydroxylamine to Nitriles in Ionic Liquids

2014 ◽  
Vol 11 (5) ◽  
pp. 751-756 ◽  
Author(s):  
Attila Voros ◽  
Zoltan Baan ◽  
Geza Timari ◽  
Istvan Hermecz ◽  
Peter Mizsey ◽  
...  
Keyword(s):  
Ionic Liquids ◽  
Highly Efficient ◽  
Selective Addition

Intramolecular Diels–Alder Reactions of Oxazoles, Imidazoles, and Thiazoles

Synthesis ◽  
2020 ◽  
Author(s):  
Peter Wipf ◽  
Thanh T. Nguyen
Keyword(s):  
Natural Products ◽  
Lewis Acid ◽  
Acid Catalysis ◽  
Copper Catalysts ◽  
Diels Alder ◽  
Synthetic Approach ◽  
Highly Efficient ◽  
Intramolecular Cycloadditions ◽  
Western Segment ◽  
Target Molecules

AbstractThe development of the intramolecular Diels–Alder cycloaddition­ of azole heterocycles, i.e. oxazoles (IMDAO), imidazoles (IMDAI), and thiazoles (IMDAT), has had a significant impact on the efficient preparation of heterocyclic intermediates and natural products. In particular, highly efficient and versatile IMDAO reactions have been utilized as a key step in several synthetic schemes to provide alkaloids and terpenoid target molecules. More limited studies have been performed on IMDAI and IMDAT cycloadditions. Some drawbacks, such as the occasionally­ challenging preparation of IMDA precursors, are also highlighted in this review. Perspectives are provided on how IMDAI and IMDAT­ transformations can be further expanded for target-directed syntheses.1 Introduction2 Oxazoles2.1 IMDAO Approaches to Furanosesquiterpenes and Furanosteroids2.1.1 Syntheses of Highly Oxygenated Sesquiterpenes2.1.2 Syntheses of (±)-Gnididione and (±)-Isognididione2.1.3 Synthesis of (±)-Stemoamide2.1.4 Synthesis of (±)-Paniculide A2.1.5 Syntheses of (+)- and (–)-Norsecurinine2.1.6 Synthesis of Evodone2.1.7 Syntheses of (±)-Ligularone and (±)-Petasalbine2.1.8 Syntheses of Imerubrine, Isoimerubrine, and Grandirubrine2.1.9 Syntheses of Furanosteroids2.1.10 Syntheses of Substituted Indolines and Tetrahydroquinolines2.2 IMDAO Approaches to Pyridines: the Kondrat’eva Reaction2.2.1 Syntheses of Suaveoline and Norsuaveoline2.2.2 Synthesis of Eupolauramine2.2.3 Syntheses of (–)-Plectrodorine and (+)-Oxerine2.2.4 Synthesis of Amphimedine2.2.5 Synthetic Approach to the Western Segment of Haplophytine2.2.6 Synthesis of Marinoquinoline A2.2.6.1 IMDAO Approach to Marinoquinoline A2.2.6.2 Scope of Allenyl IMDAO Cycloaddition2.3 Lewis Acid Catalysis in IMDAO Reactions2.3.1 Effects of Europium Catalysts on IMDAO Reactions2.3.2 Effects of Copper Catalysts on IMDAO Reactions3 Imidazoles 4 Thiazoles4.1 Syntheses of Menthane and Eremophilane4.2 Further Comments on the Intramolecular Cycloadditions of Thiocarbonyl Ylides5 Conclusions and Outlook

Synthesis of Guanidinium-Based Poly(ionic liquids) with Nonporosity for Highly Efficient SO2 Capture from Flue Gas

2021 ◽  
Author(s):  
Fei-Feng Mao ◽  
Yan Zhou ◽  
Wenshuai Zhu ◽  
Xiao-Yan Sang ◽  
Zhang-Min Li ◽  
...  
Keyword(s):  
Ionic Liquids ◽  
Flue Gas ◽  
Highly Efficient ◽  
So2 Capture

Catalytic Asymmetric Aza‐Diels‐Alder Reaction of Ketimines and Unactivated Dienes

2021 ◽  
Author(s):  
Xin Li ◽  
Qun Zhao ◽  
Yao Li ◽  
Qing-Xia Zhang ◽  
Jin-Pei Cheng
Keyword(s):  
Alder Reaction ◽  
Diels Alder ◽  
Diels Alder Reaction ◽  
Catalytic Asymmetric

Highly efficient capture of odorous sulfur-based VOCs by ionic liquids

2021 ◽  
Vol 402 ◽  
pp. 123507 ◽  
Author(s):  
Ruinian Xu ◽  
Chengna Dai ◽  
Mingli Mu ◽  
Jun Cheng ◽  
Zhigang Lei ◽  
...  
Keyword(s):  
Ionic Liquids ◽  
Highly Efficient

Ether-functionalized ionic liquids as highly efficient SO2 absorbents

2011 ◽  
Vol 4 (5) ◽  
pp. 1802 ◽  
Author(s):  
Sung Yun Hong ◽  
Jinkyu Im ◽  
Jelliarko Palgunadi ◽  
Sang Deuk Lee ◽  
Je Seung Lee ◽  
...  
Keyword(s):  
Ionic Liquids ◽  
Highly Efficient
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