Results 51 to 60 of about 9,296,901 (229)

Isodesmic Supramolecular Assembly of Phenylethynylene Bis‐Urea Macrocycles

Chemistry – A European Journal, EarlyView.
A soluble phenylethynylene bis‐urea macrocycle assembles in polar media via an isodesmic hydrogen bonded mechanism. Spectroscopic and morphological studies reveal nanoscale aggregates with short chain length, while guest additives modulate enthalpy and polymerization, demonstrating tunable supramolecular assembly.
Fahidat A. Gbadamosi, Kazi Md Zubaer, Vaibhavi A. Samant, Jillian Eubanks, Sophya Garashchuk, Linda S. Shimizu   +5 more
wiley   +1 more source

The palladium-catalyzed cross-coupling reactions of 3-chloro-4-halogeno-1,2,5-thiadiazoles

, 2003
3,4-Dichloro- and 3-chloro-4-halogeno-1,2,5-thiadiazoles (halogeno-: bromo- and iodo-) are involved in Pd-catalyzed cross-coupling reactions under Stille and Suzuki conditions.
Alain Merschaert, Merschaert, A., Hugo J. Gorissen, Gorissen, HJ.   +3 more
core   +1 more source

Synthesis of some new pyrazolo[1,5-a]pyrimidine, pyrazolo[5,1-c]triazine, 1,3,4-thiadiazole and pyridine derivatives containing 1,2,3-triazole moiety

Chemistry Central Journal, 2017
Background Pyrazolo[1,5-a]pyrimidines are purine analogues. They have beneficial properties as antimetabolites in purine biochemical reactions. This division compounds have attracted wide pharmaceutical interest because of their antitrypanosomal activity.
Nadia A. Abdelriheem, Yasser H. Zaki, Abdou O. Abdelhamid   +2 more
doaj   +1 more source

Reverse evolution of fluorine and side chains in bisisoindigo‐based copolymers enabling electron mobility exceeding 7 cm2·V−1·s−1

FlexMat, EarlyView.
Abstract We report the design and synthesis of a series of bisisoindigo‐based donor–acceptor (D–A) copolymers, P4F18, P4F10, P2F18, and P2F10. By reverse evolution of fluorine substitution and side‐chain structure, we effectively tuned the frontier molecular orbital energy levels, intermolecular interactions, molecular self‐assembly, and thus charge ...
Keli Shi, Chang Cui, Qianqian Zhao, Jianping Chen, Weifeng Zhang, Jiadi Chen, Qian Che, Yunchao Zhang, Youjia Li, Zhihui Chen, Liping Wang, Gui Yu   +11 more
wiley   +1 more source

I₂‑Mediated Oxidative C–N and N–S Bond Formation in Water: A Metal-Free Synthesis of 4,5-Disubstituted/N-Fused 3‑Amino-1,2,4-triazoles and 3‑Substituted 5‑Amino-1,2,4-thiadiazoles

, 2018
An environmentally benign and convenient strategy for the synthesis of 4,5-disubstituted/N-fused 3-amino-1,2,4-triazoles and 3-substituted 5-amino-1,2,4-thiadiazoles from isothiocyanates has been developed.
Nagesh Jatangi (3998549), Mangarao Nakka (546374), Nagaraju Tumula (3998543), Radha Krishna Palakodety (3998546)   +3 more
core   +1 more source

Recent Developments In Chemistry Of 1,3,4-Thiadiazoles [PDF]

, 2014
The methods of preparation, structure and biological activities of 1,3,4-thiadiazoles are ...
Mahmoud Fawzy Ismail, Mahmoud, Mahmoud Refaee, Ismail, Mahmoud Fawzy, Mahmoud Refaee Mahmoud   +3 more
core   +1 more source

Sunlight Bleaching of Subporphyrazine Dye Films

Applied Sciences, 2023
Stable subphthalocyanine-type dyes with a high electron affinity attract much attention as potential substitutes for traditional fullerenes in molecular electronics devices.
Vlad V. Travkin, Danila A. Semikov, Pavel A. Stuzhin, Ivan A. Skvortsov, Georgy L. Pakhomov   +4 more
doaj   +1 more source

DEVELOPMENT OF NOVEL 1, 3, 4-THIADIAZOLES AS ANTITUBERCULAR AGENTS-SYNTHESIS AND IN VITRO SCREENING

International Journal of Current Pharmaceutical Research, 2023
Objective: Tuberculosis, known in short as TB, is considered to be a global crisis caused by Myco bacterium tuberculosis, and which continues to be a serious challenge to public health world wide especially in the developing countries. A serious problem related to tuberculosis is the development of drug resistant strains. Methods: Present study ...
ANCY THOMAS, VINOD B., SNEHA SHENOY K. U., VISHNU M. V.   +3 more
openaire   +1 more source

Bayesian optimization enables balanced ambipolar transport in self‐doped random conjugated polymers

InfoMat, EarlyView.
The integration of side‐chain self‐doping with Bayesian optimization enables balanced ambipolar transport in random conjugated polymers with only six experiments, establishing a general and efficient paradigm for the rational design of flexible electronic materials.
Pinyu Chen, Xiangrui Gong, Tianqiang Cui, Bolun Huang, Ying Jiang, Ye Zou, Lang Jiang, Baoxin Zhang, Chengshan Yuan, Xiangfeng Shao, Hao‐Li Zhang, Zitong Liu   +11 more
wiley   +1 more source

Synthesis of 4-thioacetyl-1,2,3-thiadiazoles. Reversible rearrangement of N-Substituted 5-methyl-1,2,3-thiadiazole-4-carbothioamides

, 2012
The equilibrium in the reversible rearrangement of 5-methyl-1,2,3- thiadiazole-4-carbothioamides into 5-amino-4-thioacetyl-1,2,3-thiadiazoles is displaced toward the former, and polar solvents favor increased fraction of the thioketone.
Prokhorova, P. E., Morzherin, Yu. Yu., Glukhareva, T. V., Kalinina, T. A.   +3 more
core   +1 more source