Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation

Search Page

Filters

My NCBI Filters

Results by year

Table representation of search results timeline featuring number of search results per year.

Year Number of Results
2006 1
2011 2
2012 3
2013 4
2014 1
2015 1
2016 1
2017 1
2018 1
2019 1
2020 1
2022 1
2023 5
2024 2

Text availability

Article attribute

Article type

Publication date

Search Results

22 results

Results by year

Filters applied: . Clear all
Page 1
Rhodium-catalyzed selenylation and sulfenylation of quinoxalinones 'on water'.
Lalji RSK, Prince, Gupta M, Kumar S, Kumar A, Singh BK. Lalji RSK, et al. Among authors: singh bk. RSC Adv. 2023 Feb 20;13(9):6191-6198. doi: 10.1039/d2ra07400a. eCollection 2023 Feb 14. RSC Adv. 2023. PMID: 36814880 Free PMC article.
A rhodium-catalysed, regioselective synthetic methodology for selenylation and sulfenylation of 3-phenyl quinoxolinones has been developed through N-directed C-H activation in the presence of silver triflimide, and silver carbonate using dichalcogenides 'on water'. ...
A rhodium-catalysed, regioselective synthetic methodology for selenylation and sulfenylation of 3-phenyl quinoxolinones has been developed t …
A systematic review of mathematical models of mosquito-borne pathogen transmission: 1970-2010.
Reiner RC Jr, Perkins TA, Barker CM, Niu T, Chaves LF, Ellis AM, George DB, Le Menach A, Pulliam JR, Bisanzio D, Buckee C, Chiyaka C, Cummings DA, Garcia AJ, Gatton ML, Gething PW, Hartley DM, Johnston G, Klein EY, Michael E, Lindsay SW, Lloyd AL, Pigott DM, Reisen WK, Ruktanonchai N, Singh BK, Tatem AJ, Kitron U, Hay SI, Scott TW, Smith DL. Reiner RC Jr, et al. Among authors: singh bk. J R Soc Interface. 2013 Feb 13;10(81):20120921. doi: 10.1098/rsif.2012.0921. Print 2013 Apr 6. J R Soc Interface. 2013. PMID: 23407571 Free PMC article. Review.
Microwave assisted regioselective halogenation of benzo[b][1,4]oxazin-2-ones via sp2 C-H functionalization.
Kumar S, Prince, Gupta M, Lalji RSK, Singh BK. Kumar S, et al. Among authors: singh bk. RSC Adv. 2023 Jan 16;13(4):2365-2371. doi: 10.1039/d2ra07259a. eCollection 2023 Jan 11. RSC Adv. 2023. PMID: 36741130 Free PMC article.
A microwave assisted, palladium-catalyzed regioselective halogenation of 3-phenyl-2H-benzo[b][1,4]oxazin-2-ones has been demonstrated using inexpensive and readily available N-halosuccinimide. The reaction utilizes the nitrogen atom present in the heterocyclic ring as the …
A microwave assisted, palladium-catalyzed regioselective halogenation of 3-phenyl-2H-benzo[b][1,4]oxazin-2-ones has been demonstrated using …
Efficient synthesis of glycosylated imidazo[1,2-a]pyridines via solvent catalysed Groebke-Blackburn-Bienayme reaction.
Shankar B, Kumar B, Kumar S, Arora A, Kavita, Tomar R, Singh BK. Shankar B, et al. Among authors: singh bk. Carbohydr Res. 2023 Dec;534:108974. doi: 10.1016/j.carres.2023.108974. Epub 2023 Oct 23. Carbohydr Res. 2023. PMID: 37922684
A solvent catalysed and metal catalyst-free Groebke-Blackburn-Bienayame three component reaction (GBB-3CR) has been developed for the synthesis of 2-(beta-D-glycal-1-yl)-3-N-alkylamino-1-azaindolizines and 2-alkyl/aryl/heteroaryl-3-N-alkylamino-1-azaindolizines. ...
A solvent catalysed and metal catalyst-free Groebke-Blackburn-Bienayame three component reaction (GBB-3CR) has been developed for the synthe …
Solvent-free synthesis and in-silico molecular docking study of (E)-3-(beta-C-glycosylmethylidene)-N-aryl/alkyl succinimides.
Shankar B, Singh T, Kumar B, Arora A, Kumar S, Singh BK. Shankar B, et al. Among authors: singh bk. Org Biomol Chem. 2023 Dec 6;21(47):9398-9409. doi: 10.1039/d3ob01252b. Org Biomol Chem. 2023. PMID: 37982163
Thus, the reaction of different 2,3,4,6-tetra-O-benzyl-C-glycosyl aldehydes with N-aryl/alkyl maleimides in the presence of PPh(3) at 25 C under bulk and mechanical grinding conditions results in the formation of stereochemically defined (E)-3-(2,3,4,6-tetra-O-benzyl-C-gly …
Thus, the reaction of different 2,3,4,6-tetra-O-benzyl-C-glycosyl aldehydes with N-aryl/alkyl maleimides in the presence of PPh(3) at …
Visible-Light-Driven Regioselective Decarboxylative Acylation of N-Methyl-3-phenylquinoxalin-2(1H)-one by Dual Palladium-Photoredox Catalysis Through C-H Activation.
Prince, Monika, Kumar P, Singh BK. Prince, et al. Among authors: singh bk. ACS Omega. 2023 Dec 16;9(1):651-657. doi: 10.1021/acsomega.3c06367. eCollection 2024 Jan 9. ACS Omega. 2023. PMID: 38239288 Free PMC article.
We report herein an efficient visible-light-promoted approach for the regioselective decarboxylative C-H acylation of N-methyl-3-phenylquinoxalin-2(1H)-ones using alpha-oxo-2-phenylacetic acids via dual palladium-photoredox catalysis. ...The established protocol tolerated …
We report herein an efficient visible-light-promoted approach for the regioselective decarboxylative C-H acylation of N-methyl-3-phen …
Natural Compounds and Their Analogues as Potent Antidotes against the Most Poisonous Bacterial Toxin.
Patel KB, Cai S, Adler M, Singh BK, Parmar VS, Singh BR. Patel KB, et al. Among authors: singh bk. Appl Environ Microbiol. 2018 Nov 30;84(24):e01280-18. doi: 10.1128/AEM.01280-18. Print 2018 Dec 15. Appl Environ Microbiol. 2018. PMID: 30389764 Free PMC article.
Botulinum neurotoxins (BoNTs), the most poisonous proteins known to humankind, are a family of seven (serotype A to G) immunologically distinct proteins synthesized primarily by different strains of the anaerobic bacterium Clostridium botulinum Being the causative agents of botul …
Botulinum neurotoxins (BoNTs), the most poisonous proteins known to humankind, are a family of seven (serotype A to G) immunologically disti …
22 results