Indolyl Carboxylic Acids by Condensation of Indoles with α-Keto Acids

2000 ◽  
Vol 63 (5) ◽  
pp. 596-598 ◽  
Author(s):  
Thomas R. Garbe ◽  
Miki Kobayashi ◽  
Naoki Shimizu ◽  
Naohide Takesue ◽  
Masatomi Ozawa ◽  
...  
Keyword(s):  
Carboxylic Acids ◽  
Keto Acids

Gallium-catalyzed reductive lactonization of γ-keto acids with a hydrosilane

RSC Advances ◽  
2016 ◽  
Vol 6 (85) ◽  
pp. 81763-81766 ◽  
Author(s):  
Norio Sakai ◽  
Shuhei Horikawa ◽  
Yohei Ogiwara
Keyword(s):  
Carboxylic Acids ◽  
Gallium Chloride ◽  
Keto Acids

Gallium chloride efficiently catalyzes cyclization of γ-keto carboxylic acids in the presence of PhSiH3 to produce the corresponding γ-lactone derivatives.

Tungsten complex induced dehydration of 2,3-dihydroxy-carboxylic acids to α-keto acids

1992 ◽  
Vol 33 (45) ◽  
pp. 6791-6794 ◽  
Author(s):  
Hye Kyung Bae Yu ◽  
Jeffrey Schwartz
Keyword(s):  
Carboxylic Acids ◽  
Keto Acids

Anion chromatography of carboxylic acids and keto acids using a hollow-fibre suppressor

1982 ◽  
Vol 253 ◽  
pp. 87-94 ◽  
Author(s):  
Souji Rokushika ◽  
Zhuo Lian Sun ◽  
Hiroyuki Hatano
Keyword(s):  
Carboxylic Acids ◽  
Hollow Fibre ◽  
Keto Acids ◽  
Anion Chromatography

scholarly journals Acyl Radical Chemistry via Visible-Light Photoredox Catalysis

Synthesis ◽  
2018 ◽  
Vol 51 (02) ◽  
pp. 303-333 ◽  
Author(s):  
Ming-Yu Ngai ◽  
Arghya Banerjee ◽  
Zhen Lei
Keyword(s):  
Visible Light ◽  
Carboxylic Acids ◽  
Easy Access ◽  
Hypervalent Iodine ◽  
Photoredox Catalysis ◽  
Acyl Radical ◽  
Diverse Range ◽  
Acyl Chlorides ◽  
Keto Acids ◽  
Acyl Radicals

Visible-light photoredox catalysis enables easy access to acyl radicals under mild reaction conditions. Reactive acyl radicals, generated from various acyl precursors such as aldehydes, α-keto acids, carboxylic acids, anhydrides, acyl thioesters, acyl chlorides, or acyl silanes, can undergo a diverse range of synthetically useful transformations, which were previously difficult or inaccessible. This review summarizes the recent progress on visible-light-driven acyl radical generation using transition-metal photoredox catalysts, metallaphotocatalysts, hypervalent iodine catalysts or organic photocatalysts.1 Introduction2 The Scope of This Review3 Aldehydes as a Source of Acyl Radicals4 α-Keto Acids as a Source of Acyl Radicals5 Carboxylic Acids as a Source of Acyl Radicals6 Anhydrides as a Source of Acyl Radicals7 Acyl Thioesters as a Source of Acyl Radicals8 Acyl Chlorides as a Source of Acyl Radicals9 Acyl Silanes as a Source of Acyl Radicals10 Conclusions and Future Outlook

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