Results 41 to 50 of about 10,618 (207)

Investigation of growth stimulating activity of 2-heteryl-[1,2,4]triazolo [1,5-c]quinazolines and products of its nucleophilic degradation

Zaporožskij Medicinskij Žurnal, 2013
Nucleophilic degradation of 2-heteryl-[1,2,4]triazolo[1,5-c]quinazolines was investigated and the structure of {2-(3-heteryl)-1H-1,2,4-triazol-5-yl]phenyl}ami­nes was unequivocally proved by spectral methods.
A. K. Bilyi, S. I. Kovalenko, O. V. Prihodko   +2 more
doaj   +1 more source

Photocatalytic Cross‐Coupling of Phenols and Heteroaryl Halides With Machine Learning‐Guided Reaction Prediction

Angewandte Chemie, Volume 138, Issue 16, 13 April 2026.
Photocatalytic cross‐coupling: A redox‐neutral photochemical method enables direct C(sp2)─C(sp2) bond formation between phenols and heteroaryl halides using an organic dye and base. Complementary radical generation allows efficient cross‐coupling in up to 91% yield. Mechanistic studies, DFT, HTE, and machine learning rationalize and predict reactivity,
Matthew C. Carson, Alice Wu, Kalyana B. Duggal, Madeline E. Rotella, Marisa C. Kozlowski   +4 more
wiley   +2 more sources

Synthesis, Antibacterial, and Antioxidant Evaluation of Novel Series of Condensed Thiazoloquinazoline with Pyrido, Pyrano, and Benzol Moieties as Five- and Six-Membered Heterocycle Derivatives

Molecules, 2021
A novel synthesis of thiazolo[2,3-b]quinazolines 4(a–e), pyrido[2′,3′:4,5]thiazolo[2,3-b]quinazolines {5(a–e), 6(a–e), and 7(a–e)}, pyrano[2′,3′:4,5]thiazolo[2,3-b]quinazolines 8(a–e), and benzo[4,5]thiazolo[2,3-b]quinazoloine9(a–e) derivatives starting ...
Ebraheem Abdu Musad Saleh, Abdullah Mohammed AL Dawsari, Kakul Husain, Ismail Hassan Kutty, K.M.Lokanatha Rai   +4 more
doaj   +1 more source

Integrated CO2 capture-fixation chemistry via interfacial ionic liquid catalyst in laminar gas/liquid flow [PDF]

, 2019
Simultaneous capture of carbon dioxide (CO2) and its utilization with subsequent work-up would significantly enhance the competitiveness of CO2-based sustainable chemistry over petroleum-based chemistry.
Babu, A.G., Hwang, Y.-H., Kim, D.-P., Kim, J.-O., Ko, D.-H., Singh, A.K., Vishwakarma, N.K.   +6 more
core   +1 more source

Direct Functionalization of Nitrogen Heterocycles via Rh-Catalyzed C−H Bond Activation [PDF]

, 2008
Nitrogen heterocycles are present in many compounds of enormous practical importance, ranging from pharmaceutical agents and biological probes to electroactive materials.
Alberico D., Alonso F., Alvarez E., Bellina F., Bercaw J. E., Bergman R. G., Campeau L.-C., Canac Y., Chang L. L., Chatani N., Chen M. S., Chiong H. A., Cho J. -Y., Christ M. L., Clement N. D., Crabtree R. H., Daugulis O., Daugulis O., Diederich F., Do H.-Q., Dwyer C. L., Dyker G., Esteruelas M. A., Ferreira E. M., Gant T. G., Garcia-Cuadrado D., Graczyk P. P., Gribble M., Herrmann W. A., Hillier A. C., Hlasta D. J., Ishiyama T., Jia C. G., Johnson J. B., Kakiuchi F., Kakiuchi F., Kalyani D., Klingler R. J., Kreher R., Larhed M., Lewis J. C., Lewis J. C., Lewis J. C., Lewis J. C., Michael J. P., Miura M., Moore E. J., Netherton M. R., Peters M. W., Pivsa-Art S., Rech J. C., Ritleng V., Stuart D. R., Tan K. L., Tan K. L., Tan K. L., Tan K. L., Tan K. L., Tunge J. A., van Assema S. G. A., Wiedemann S. H., Wiedemann S. H., Wiedemann S. H., Yanagisawa S., Zharekeev B. K.   +64 more
core   +2 more sources

Benzthiazoloneyl Quinazolines.

, 1934
Benzthiazoloneyl Quinazolines.
PRAFULLA KUMAR BOSE, KUMUD BIHARI PATHAK
openaire   +1 more source

Synthesis of 2,4-disubstituted quinazolines promoted by deep eutectic solvent

Current Research in Green and Sustainable Chemistry, 2021
An efficient deep eutectic solvent (DES) promoted reaction of 2-amino-5-chlorobenzophenone, aromatic aldehydes (benzoyl alcohols) and ammonium acetate leading to the formation of quinazolines with excellent yields is described.
Rajkumar Romeshkumar Singh, Thokchom Prasanta Singh, Thangjam Linda Devi, Thokchom Jeeta Devi, Okram Mukherjee Singh   +4 more
doaj   +1 more source

A Feasibility Study of the Repurposing of Prazosin to Improve Treatment Outcomes in Men Receiving Radiotherapy for Prostate Cancer (MiniRaP‐00)

The Prostate, EarlyView.
ABSTRACT Background Further work is needed to improve treatment outcomes for prostate cancer (PCa), with the repurposing of the α1‐adrenoreceptor antagonists presenting a potential solution. This feasibility clinical trial presents the first prospective data of the use of an α1‐adrenoreceptor antagonist in men undergoing radiotherapy for PCa.
Liam D. King, David Christie, Daniel Cehic, Wendy Dare, Russ Chess‐Williams, Donna Sellers, Catherine McDermott, Alexandra McCarthy, Shailendra Anoopkumar‐Dukie   +8 more
wiley   +1 more source

Synthesis and antibacterial activity of 2-phenyl-5-aryl-4, 5, 6, 7, 8, 9-hexahydro-1,2.4-triazolo[1,5-A]quinazolines [PDF]

, 2013
A method for the synthesis of 2-phenyl-5-aryl-4, 5, 6, 7, 8,9- hexahydrotriazolo[1,5-a] quinazolines was developed.3-Amino-5-phenyl-1,2,4-triazole formed Schiff’s bases with aromatic aldehydes which on treatment with cyclohexanonein the presence of ...
Ain Khan, Misbahul, Ali Munawar, Munawar, Aslam, Samina, Nazeer, Areesha, Parveen, Najma   +4 more
core  

Functionalization of diazines and benzo derivatives through deprotonated intermediates. [PDF]

, 2008
International audienceThis critical review targets as a readership researchers generally oriented toward organic synthesis and in particular those active in heterocyclic chemistry.
Chevallier, Floris, Mongin, Florence
core   +2 more sources