Results 11 to 20 of about 153,294 (307)

The effect of aliphatic carboxylic acids on olfaction-based host-seeking of the malaria mosquito Anopheles gambiae sensu stricto [PDF]

, 2009
The role of aliphatic carboxylic acids in host-seeking response of the malaria mosquito Anopheles gambiae sensu stricto was examined both in a dual-choice olfactometer and with indoor traps.
Yu Tong Qiu, Joop J. A. Van Loon, Bukovinszkine-Kiss, G., Smallegange, R.C., Renate C. Smallegange, Loon, J.J.A., van, van Loon, J.J.A., Takken, W., Gabriella Bukovinszkiné-Kiss, Qiu, Y.T., Willem Takken   +10 more
core   +1 more source

Cobalt-catalyzed highly enantioselective hydrogenation of α,β-unsaturated carboxylic acids

Nature Communications, 2020
A large number of marketed drugs contains a chiral carboxylic acid scaffold. Here, the authors report the asymmetric hydrogenation of α,β-unsaturated carboxylic acids to α-chiral carboxylic acids using a cobalt catalyst bearing an electron-donating ...
Xiaoyong Du, Ye Xiao, Jia-Ming Huang, Yao Zhang, Ya-Nan Duan, Heng Wang, Chuan Shi, Gen-Qiang Chen, Xumu Zhang   +8 more
doaj   +1 more source

Comparisons of GC-Measured Carboxylic Acids and AMS m/z 44 Signals: Contributions of Organic Acids to m/z 44 Signals in Remote Aerosols from Okinawa Island

Applied Sciences, 2022
An intercomparison study was conducted to evaluate the contributions of carboxylic acids to m/z 44 (COO+) signals obtained by an on-line aerosol mass spectrometer (AMS) during a field campaign at Cape Hedo, Okinawa, in the western North Pacific Rim.
Bhagawati Kunwar, Kazuhiro Torii, Shankar G. Aggarwal, Akinori Takami, Kimitaka Kawamura   +4 more
doaj   +1 more source

Unexpected Isomerization of Oxetane-Carboxylic Acids

, 2022
[Image: see text] Many oxetane-carboxylic acids were found to be unstable. They easily isomerized into new (hetero)cyclic lactones while being stored at room temperature or slightly heated.
Rudenko, Tymofii V., Mykhailiuk, Pavel K., Anastasiia , Grynyova, Dibchak, Dmitry, Kateryna, Filimonova, Chalyk, Bohdan, Bohdan , Chalyk, Tymofii , Rudenko, Dmitry, Dibchak, Filimonova, Kateryna, Grynyova, Anastasiia, Pavel, Mykhailiuk   +11 more
core   +1 more source

Visible Light-Induced Coupling of Carboxylic Acids with Alcohols and Amines

, 2022
The combination of activated carboxylic acids and alcohols or amines to access esters and amides, respectively, is a cornerstone of organic chemistry and has been well developed over the past century.
Karl, Scheidt, Osvaldo, Gutierrez, Qiupeng, Peng, Angel, Rentería-Gómez, Achyut, Gogoi   +4 more
core   +1 more source

Study of the effect of microwave-ray on some carboxylic acids containing hydroxyl group at α – carbon [PDF]

مجلة التربية والعلم, 1999
: The effect of Microwave-ray was studied on the three mono carboxylic acids contains hydroxyl group (OH) at α – carbon in the solid state at different times. these carboxylic acids are Glycolic acid, Mandilic acid, Benzilic acid.
Ahmed Sadoon
doaj   +1 more source

Siloxy Esters as Traceless Activator of Carboxylic Acids: Boron-Catalyzed Chemoselective Asymmetric Aldol Reaction

, 2021
The catalytic asymmetric aldol reaction of carboxylic acids is among the most useful reactions for the synthesis of biologically active compounds and pharmaceuticals.
Taiki, Fujita, Motomu, Kanai, W. M. C., Sameera, Mina, Yamane, Harunobu, Mitsunuma   +4 more
core   +1 more source

Field-Scale Co-fermentation of Solid Waste From Urine-Diverting Dry Toilets (UDDT-SW) and Banana Waste to Produce Undissociated Carboxylic Acids to Inactivate Ascaris Eggs

Frontiers in Environmental Science, 2019
Innovative, low-cost methods for inactivating pathogens in human fecal material (HFM) are needed, particularly in expanding urban areas where conventional sewer systems and centralized wastewater treatment plants are not feasible.
Lauren A. Harroff, Janice L. Liotta, Emily E. Wangolo, Tim J. S. Egan, Dwight D. Bowman, Largus T. Angenent   +5 more
doaj   +1 more source

Synthesis and analgesic activity evaluation of derivatives of 2-[(1,4-dioxo-1-amino-4-arylbutyl-2-en-2-yl)amino]-4,5,6,7-tetrahydrobenzo[b]thiophene-3-carboxylic acid

Chimica Techno Acta, 2021
The synthesis of new derivatives of 2-[(1,4-dioxo-1-amino-4-arylbutyl-2-en-2-yl)amino]-4,5,6,7-tetrahydrobenzo[b]thiophene-3-carboxylic acid is described.
Alena I. Siutkina, Ramiz R. Makhmudov, Daria A. Shipilovskikh   +2 more
doaj   +1 more source

Mechanochemical-Assisted Decarboxylative Sulfonylation of α,β-Unsaturated Carboxylic Acids with Sodium Sulfinate Salts

, 2023
Developing a green and efficient method for synthesizing vinyl sulfones is challenging and highly desirable. We hereby report a green, sustainable, and unprecedented mechanochemical-assisted approach for the decarboxylative sulfonylation of α,β ...
Barakha , Saxena, Roshan, Patel, Shruti, Sharma, Anuj, Sharma   +3 more
core   +1 more source