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
1939 2
1940 1
1972 1
1996 1
1998 2
2000 1
2004 1
2005 4
2006 2
2007 5
2008 3
2009 4
2010 4
2011 7
2012 9
2013 6
2014 12
2015 6
2016 5
2017 5
2018 11
2019 7
2020 6
2021 16
2022 5
2023 10
2024 7

Text availability

Article attribute

Article type

Publication date

Search Results

134 results

Results by year

Filters applied: . Clear all
Page 1
Showing results for ketene li
Search for Keteng Li instead (1 results)
Visible-Light-Induced Sulfur-Alkenylation of Alkenes.
Xu Q, Zhou X, Zhang S, Pan L, Liu Q, Li Y. Xu Q, et al. Org Lett. 2021 Jun 18;23(12):4870-4875. doi: 10.1021/acs.orglett.1c01596. Epub 2021 Jun 10. Org Lett. 2021. PMID: 34109797
This sulfur-alkenylation reaction proceed in a highly regio- and stereospecific manner involving the visible-light-induced conversion of a ketene dithioacetal to the thiavinyl 1,3-dipole intermediate, followed by a formal [3 + 2] cycloaddition and C-S bond cleavage. ...
This sulfur-alkenylation reaction proceed in a highly regio- and stereospecific manner involving the visible-light-induced conversion of a …
Visible-Light-Promoted Regioselective Hydroborylation of Ketene Dithioacetals with NHC-Boranes.
An Y, Li X, Xia S, Jian Y, Wen F, Liu Z, He J, Shen Y, Wang Y. An Y, et al. J Org Chem. 2023 Nov 3;88(21):15151-15158. doi: 10.1021/acs.joc.3c01642. Epub 2023 Oct 18. J Org Chem. 2023. PMID: 37851408
NHC-boranes have been treated as a reliable source of boryl radicals. In this study, regioselective hydroborylation of ketene dithioacetals with NHC-borane was achieved under mild conditions via a visible-light-promoted radical chain process using thiophenol as a proton do …
NHC-boranes have been treated as a reliable source of boryl radicals. In this study, regioselective hydroborylation of ketene dithioa …
Molecular Understanding of the Catalytic Consequence of Ketene Intermediates under Confinement.
Chen W, Li G, Yi X, Day SJ, Tarach KA, Liu Z, Liu SB, Edman Tsang SC, Góra-Marek K, Zheng A. Chen W, et al. J Am Chem Soc. 2021 Sep 22;143(37):15440-15452. doi: 10.1021/jacs.1c08036. Epub 2021 Sep 3. J Am Chem Soc. 2021. PMID: 34478267 Free PMC article.
Neutral ketene is a crucial intermediate during zeolite carbonylation reactions. ...By contrast, in 12MR channels of MOR, a relatively longer lifetime was observed for ketene, which tends to accelerate deactivation of zeolite due to coke formation by the dimerizatio …
Neutral ketene is a crucial intermediate during zeolite carbonylation reactions. ...By contrast, in 12MR channels of MOR, a relativel …
Identification of Ketene-Reactive Intermediate of Erlotinib Possibly Responsible for Inactivation of P450 Enzymes.
Zhao H, Li S, Yang Z, Peng Y, Chen X, Zheng J. Zhao H, et al. Drug Metab Dispos. 2018 Apr;46(4):442-450. doi: 10.1124/dmd.117.079327. Epub 2018 Jan 19. Drug Metab Dispos. 2018. PMID: 29352069
A ketene intermediate was detected in human microsomal incubations of ELT, using 4-bromobenzylamine as a trapping agent. CYPs 3A4 and 3A5 mainly contributed to the bioactivation of ELT. Microsomal incubation study showed that the ketene intermediate covalently modif …
A ketene intermediate was detected in human microsomal incubations of ELT, using 4-bromobenzylamine as a trapping agent. CYPs 3A4 and …
Synthesis of alpha-Heteroaryl Propionic Esters by Palladium-Catalyzed alpha-Heteroarylation of Silyl Ketene Acetals.
Li B, Luo B, Blakemore CA, Smith AC, Widlicka DW, Berritt S, Tang W. Li B, et al. Org Lett. 2021 Aug 20;23(16):6439-6443. doi: 10.1021/acs.orglett.1c02257. Epub 2021 Aug 9. Org Lett. 2021. PMID: 34369790
A practical and efficient synthesis of alpha-heteroaryl propionic esters is developed by employing palladium-catalyzed alpha-heteroarylation of silyl ketene acetals, forming a wide variety of alpha-heteroaryl propionic esters with various substituents and functionalities i …
A practical and efficient synthesis of alpha-heteroaryl propionic esters is developed by employing palladium-catalyzed alpha-heteroarylation …
Icotinib Induces Mechanism-Based Inactivation of Recombinant Human CYP3A4/5 Possibly via Heme Destruction by Ketene Intermediate.
Sun C, Zhao H, Li W, Jia Y, Yang Y, Peng Y, Zheng J. Sun C, et al. Drug Metab Dispos. 2021 Oct;49(10):892-901. doi: 10.1124/dmd.121.000369. Epub 2021 Jul 26. Drug Metab Dispos. 2021. PMID: 34312304
The inhibitory effects of ICT on CYP3A were influenced neither by glutathione/N-acetyl lysine nor by superoxide dismutase/catalase. Incubation of ICT with human hepatic microsomes produced a ketene reactive intermediate trapped by 4-bromobenzylamine. CYP3A4 dominated the m …
The inhibitory effects of ICT on CYP3A were influenced neither by glutathione/N-acetyl lysine nor by superoxide dismutase/catalase. Incubati …
Synthesis of Pyrimidopyrrolopyridazines via a Tandem Reaction of Heterocyclic Ketene Aminals with 1,2-Diaza-1,3-dienes.
Zhao M, Li X, Shao J, Chen W, Xie N, Yuan H, Sun Q, Zhang W. Zhao M, et al. Org Lett. 2018 May 18;20(10):3057-3060. doi: 10.1021/acs.orglett.8b01094. Epub 2018 Apr 30. Org Lett. 2018. PMID: 29708346
A tandem reaction of heterocyclic ketene aminals and 1,2-diaza-1,3-dienes was developed for the expedient synthesis of pyrimidopyrrolopyridazine derivatives. ...
A tandem reaction of heterocyclic ketene aminals and 1,2-diaza-1,3-dienes was developed for the expedient synthesis of pyrimidopyrrol …
Enantioselective Synthesis of Nitriles Containing a Quaternary Carbon Center by Michael Reactions of Silyl Ketene Imines with 1-Acrylpyrazoles.
Chen L, Pu M, Li S, Sang X, Liu X, Wu YD, Feng X. Chen L, et al. J Am Chem Soc. 2021 Nov 17;143(45):19091-19098. doi: 10.1021/jacs.1c08382. Epub 2021 Nov 4. J Am Chem Soc. 2021. PMID: 34734697
Here we realized an enantioselective Michael reaction of silyl ketene imines to 1-acrylpyrazoles using a chiral N,N'-dioxide-Co(II) complex. ...The through-space dispersion interactions between unbound silyl ketene imines and the 1-acrylpyrazole-bonded catalyst play …
Here we realized an enantioselective Michael reaction of silyl ketene imines to 1-acrylpyrazoles using a chiral N,N'-dioxide-Co(II) c …
Constrained C2 adsorbate orientation enables CO-to-acetate electroreduction.
Jin J, Wicks J, Min Q, Li J, Hu Y, Ma J, Wang Y, Jiang Z, Xu Y, Lu R, Si G, Papangelakis P, Shakouri M, Xiao Q, Ou P, Wang X, Chen Z, Zhang W, Yu K, Song J, Jiang X, Qiu P, Lou Y, Wu D, Mao Y, Ozden A, Wang C, Xia BY, Hu X, Dravid VP, Yiu YM, Sham TK, Wang Z, Sinton D, Mai L, Sargent EH, Pang Y. Jin J, et al. Nature. 2023 May;617(7962):724-729. doi: 10.1038/s41586-023-05918-8. Epub 2023 May 3. Nature. 2023. PMID: 37138081
Here we pursued dispersing a low concentration of Cu atoms in a host metal to favour the stabilization of ketenes(10)-chemical intermediates that are bound in monodentate fashion to the electrocatalyst. ...
Here we pursued dispersing a low concentration of Cu atoms in a host metal to favour the stabilization of ketenes(10)-chemical interm …
Deoxygenating Reduction of CO(2) by [Cp*Al](4) to Form a (Al(3)O(2)C)(2) Cluster Featuring Two Ketene Moieties.
Wang B, Zhuang Y, Tu D, Shen L, Zhang ZF, Su MD, Li Y, Wu D, Roesky HW. Wang B, et al. Inorg Chem. 2022 Sep 19;61(37):14500-14505. doi: 10.1021/acs.inorgchem.2c01587. Epub 2022 Sep 2. Inorg Chem. 2022. PMID: 36053858
The deoxygenating reduction reaction of [Cp*Al](4) with CO(2) at 120 C afforded [(Cp*)(3)Al(3)O(2)C(CO)](2) (1), which featured two stacked (Al(3)O(2)C)(2) units and two CCO ketene moieties. Moreover, the isoelectronic analogues of diimine and isothiocyanate with CO(2) wer …
The deoxygenating reduction reaction of [Cp*Al](4) with CO(2) at 120 C afforded [(Cp*)(3)Al(3)O(2)C(CO)](2) (1), which featured two stacked …
134 results