Results 61 to 70 of about 24,739 (246)

Quantitative and Qualitative Analysis of and Seeds by UPLC-DAD and UPLC-ESI-QTOF

Natural Product Communications, 2017
Eruca sativa and Brassica juncea belong to the Brassicaceae family and have been used traditionally for the treatment of cancer and various cardiovascular ailments.
Arti Sharma, Ritika Sharma, Rohit Arora, Saroj Arora, Bikram Singh, Upendra Sharma   +5 more
doaj   +1 more source

Biological Effects of Glucosinolate Degradation Products from Horseradish: A Horse that Wins the Race

Biomolecules, 2020
Horseradish degradation products, mainly isothiocyanates (ITC) and nitriles, along with their precursors glucosinolates, were characterized by GC-MS and UHPLC-MS/MS, respectively.
Marijana Popović, Ana Maravić, Vedrana Čikeš Čulić, Azra Đulović, Franko Burčul, Ivica Blažević   +5 more
doaj   +1 more source

N‐Alkoxysulfurdiimide Reagents for the One‐Step Modular Synthesis of Primary Sulfonimidamides

Angewandte Chemie, EarlyView.
N‐Alkoxysulfurdiimide reagents when combined with organometallic reagents lead directly to primary sulfonimidamide products. The reactions are broad in scope, encompassing aryl, heteroaryl, and alkyl carbon substituents. The reactivity of the N‐alkoxysulfurdiimide reagents can be correlated with the electron‐withdrawing ability of the N‐substituent ...
Suzanne E. Davison, Jonathan A. Andrews, Agamemnon E. Crumpton, Mireia Sidera Portela, Michael A. Clegg, Damien Valette, Michael C. Willis   +6 more
wiley   +2 more sources

Glucosinolate breakdown products as insect fumigants and their effect on carbon dioxide emission of insects

BMC Ecology, 2002
Background Glucosinolate breakdown products are volatile, therefore good candidates for insect fumigants. However, although they are insecticidal, the mode of action of such natural products is not clear.
Coats Joel R, Peterson Chris J, Tsao Rong   +2 more
doaj   +1 more source

Cu(I) Arylsulfonate π-Complexes with 3-Allyl-2-thiohydantoin: The Role of the Weak Interactions in Structural Organization

Acta Chimica Slovenica, 2020
The present work is directed toward preparation and structural characterization of two novel Cu(I) arylsulfonate π-complexes with 3-allyl-2-thiohydantoin, namely [Cu2(Hath)4](C6H5SO3)2 (1) and [Cu2(Hath)4](p-CH3C6H4SO3)2·2H2O (2) (Hath = 3-allyl-2 ...
Andrii Fedorchuk, Evgeny Goreshnik, Yurii Slyvka, Marian Mys’kiv   +3 more
doaj   +1 more source

Toward the Synthesis of Pestalustaine A: Structural Revision and Formation of Original Strained Tricyclic Architectures

Angewandte Chemie, EarlyView.
Our synthetic endeavor toward the total synthesis of the reported unprecedented tricyclic skeleton of the sesquiterpene pestalustaine A allowed us to perform divergent cyclizations of a bicyclo[4.4.1]undec‐3‐ene into complex tricyclic architectures and to revise the structure of the natural product.
Wei Cao, Alicia Ross, Jean‐Pierre Baltaze, Régis Guillot, Menglin Xu, Rongzhen Qin, Bingcheng Yang, Isabel Wong, Katayoon Formul, Cyrille Kouklovsky, Dean J. Tantillo, Vincent Gandon, Guillaume Vincent   +12 more
wiley   +2 more sources

Photochemical Ring Opening of Cyclopropyl Silyl Ethers Enables β–β Coupling, Radical‐Polar Crossover and Annulation

Angewandte Chemie, EarlyView.
A photochemical platform enables β–β coupling of cyclopropyl silyl ethers with electron‐deficient alkenes. The resulting adducts serve as entry points into annulative and radical–polar crossover pathways, providing rapid access to fused, bridged, and spirocyclic architectures, including late‐stage scaffold diversification to diterpene‐like carbocyclic ...
Jacop Rydén, Eilidh Young, Wilma Olsson, Eskil Flodén, Mattias Tan, Sebastian Clementson   +5 more
wiley   +2 more sources

Water, Alcohols, Amines, and Amides as Formal Hydrogen‐Atom‐Transfer Reagents Through Activation With Redox‐Active Lewis Acids

Angewandte Chemie, EarlyView.
Protic molecules containing strong O─H or N─H bonds typically resist hydrogen‐atom abstraction because of the high reactivity of the resulting heteroatom‐centered radicals. However, association of the protic molecules with redox‐active Lewis acids can provide powerful hydrogen‐atom donors or proton‐coupled‐electron‐transfer reagents.
Petra Vojáčková, Armido Studer
wiley   +2 more sources

Reductive coupling of allenyl/allyl carbonate with alkyne under dual cobalt-photoredox catalysis

Nature Communications
Skipped dienes are among the most prevalent motifs in a vast array of natural products, medicinal compounds, and fatty acids. Herein, we disclose a straightforward one-step reductive protocol under Co/PC for the synthesis of diverse 1,4-dienes with ...
Subhankar Pradhan, Dhananjay Satav, Sayan Dutta, Bholanath Maity, Luigi Cavallo, Basker Sundararaju   +5 more
doaj   +1 more source

The antibacterial activity of allyl derivatives of thiosemicarbazide, N1-thiocarbamylamidrazone, 1,2,4-triazole-5-thione, 1,3,4-(thiadiazol-2-yl) amine and derivatives of bicyclic systems: 1,2,4-triazole[3,4-b]1,3-thiazine, 1,2,4-triazole[3,2-b]1,3-thiazine, 1,3,4-thiadiazole[3,2-a]pyrimidine, thiazolo[2,3-c][1,2,4]triazole

Current Issues in Pharmacy and Medical Sciences, 2012
The 1-acyl(aroil)-4-(allyl)cinnamyl-thiosemicarbazides (1-9), N1-allyl(cinnamyl)-thiocarbamyl-N3-phenyl-amidrazones (10-12), allyl derivatives of 1,2,4-triazole-5-thione (13-23), 1,3,4-(thiadiazol-2-yl) amine (24-29), derivatives of bicyclic systems: 1 ...
Leokadia Strzemecka, Urszula Kosikowska, Anna Malm   +2 more
doaj   +1 more source