scholarly journals Cover Picture: Copper(II)/Silver(I)-Catalyzed Sequential Alkynylation and Annulation of Aliphatic Amides with Alkynyl Carboxylic Acids: Efficient Synthesis of Pyrrolidones (Adv. Synth. Catal. 5/2016)

2016 ◽  
Vol 358 (5) ◽  
pp. 674-674
Author(s):  
Jitan Zhang ◽  
Danyang Li ◽  
Hui Chen ◽  
Binjie Wang ◽  
Zhanxiang Liu ◽  
...  
Keyword(s):  
Carboxylic Acids ◽  
Efficient Synthesis

Efficient synthesis of pyrido[2,3-d]pyrimidine-7-carboxylic acids catalyzed by a TiO2/SiO2 nanocomposite in aqueous media at room temperature

2018 ◽  
Vol 73 (9) ◽  
pp. 641-645 ◽  
Author(s):  
Sepehr Sadegh-Samiei ◽  
Shahrzad Abdolmohammadi
Keyword(s):  
Heterogeneous Catalyst ◽  
Carboxylic Acids ◽  
Room Temperature ◽  
Aqueous Media ◽  
Reaction Times ◽  
Molar Ratio ◽  
Efficient Synthesis ◽  
Reaction Conditions ◽  
Moderate Reaction ◽  
Recyclable Heterogeneous Catalyst

AbstractA novel and efficient synthesis of eight 5-aryl-1,3-dimethyl-2,4-dioxo-1,2,3,4,5,8-hexahydropyrido[2,3-d]pyrimidine-7-carboxylic acids using a TiO2/SiO2 nanocomposite with a molar ratio of 1:1 as a recyclable heterogeneous catalyst is described. The desired products, five of which are new, are formed in short reaction times (2–3 h) with high to excellent yields (94%–98%) under very moderate reaction conditions (room temperature, aqueous media).

A Schiff base-modified silver catalyst for efficient fixation of CO2 as carboxylic acid at ambient pressure

2017 ◽  
Vol 19 (9) ◽  
pp. 2080-2085 ◽  
Author(s):  
Zhilian Wu ◽  
Lei Sun ◽  
Qinggang Liu ◽  
Xiaofeng Yang ◽  
Xue Ye ◽  
...  
Keyword(s):  
Schiff Base ◽  
Carboxylic Acid ◽  
Carboxylic Acids ◽  
Ambient Pressure ◽  
Terminal Alkynes ◽  
Silver Catalyst ◽  
Efficient Synthesis

A Schiff base-modified silver catalyst was developed for the direct carboxylation of terminal alkynes with CO2, enabling the efficient synthesis of valuable alkynyl carboxylic acids.

Efficient Synthesis of α‐Trifluoromethyl Carboxylic Acids and Esters through Fluorocarboxylation of gem ‐Difluoroalkenes

2019 ◽  
Vol 58 (20) ◽  
pp. 6772-6775 ◽  
Author(s):  
Woo‐Jin Yoo ◽  
Junpei Kondo ◽  
José A. Rodríguez‐Santamaría ◽  
Thanh V. Q. Nguyen ◽  
Shū Kobayashi
Keyword(s):  
Carboxylic Acids ◽  
Efficient Synthesis

Efficient synthesis of esters through oxone-catalyzed dehydrogenation of carboxylic acids and alcohols

2018 ◽  
Vol 16 (48) ◽  
pp. 9472-9476 ◽  
Author(s):  
Fei Hou ◽  
Xi-Cun Wang ◽  
Zheng-Jun Quan
Keyword(s):  
Carboxylic Acids ◽  
Environmentally Friendly ◽  
Attractive Alternative ◽  
Efficient Synthesis

An environmentally friendly oxone (20 mol%) catalyzed esterification of carboxylic acids with alcohols has been developed, providing an attractive alternative to the construction of valuable carbonyl esters.

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