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Chromatographic and adsorption properties of poly(1-trimethylsilyl-1-propyne) and their stabilization by adding poly(1-phenyl-1-propyne).
Belotserkovskaya V, Yakovleva E. Belotserkovskaya V, et al. J Chromatogr A. 2013 Jul 12;1298:109-17. doi: 10.1016/j.chroma.2013.05.017. Epub 2013 May 21. J Chromatogr A. 2013. PMID: 23746642
In order to stabilize the chromatographic properties of PTMSP, another disubstituted polyacetylene, poly(1-phenyl-1-propyne) (PPP), was added to the initial polymer, and a new mixed stationary phase, 97% PTMSP+3% PPP, was obtained and characterized. .. …
In order to stabilize the chromatographic properties of PTMSP, another disubstituted polyacetylene, poly(1-phenyl-1- …
Liquid-Phase Hydrogenation of 1-Phenyl-1-propyne on the Pd(1)Ag(3)/Al(2)O(3) Single-Atom Alloy Catalyst: Kinetic Modeling and the Reaction Mechanism.
Rassolov AV, Mashkovsky IS, Baeva GN, Bragina GO, Smirnova NS, Markov PV, Bukhtiyarov AV, Wärnå J, Stakheev AY, Murzin DY. Rassolov AV, et al. Nanomaterials (Basel). 2021 Dec 3;11(12):3286. doi: 10.3390/nano11123286. Nanomaterials (Basel). 2021. PMID: 34947637 Free PMC article.
It is remarkable that selectivity remains almost constant upon variation of 1-phenyl-1-propyne (1-Ph-1-Pr) conversion from 5 to 95-98%, which indicates that a direct alkyne to alkane hydrogenation is negligible over Pd(1)Ag(3) catalyst. ...The model is …
It is remarkable that selectivity remains almost constant upon variation of 1-phenyl-1-propyne (1-Ph-1-Pr) conve …
Silyl-Osmium(IV)-Trihydride Complexes Stabilized by a Pincer Ether-Diphosphine: Formation and Reactions with Alkynes.
Babón JC, Esteruelas MA, Oñate E, Paz S, Vélez A. Babón JC, et al. Organometallics. 2022 Jul 18;41(15):2022-2034. doi: 10.1021/acs.organomet.2c00201. eCollection 2022 Aug 8. Organometallics. 2022. PMID: 36866234 Free PMC article.
Kinetics of the reaction along with the observed primary isotope effect demonstrates that the Si-H rupture is the rate-determining step of the activation. Complex 2 reacts with 1,1-diphenyl-2-propyn-1-ol and 1-phenyl-1-propyne. The reaction with the fo …
Kinetics of the reaction along with the observed primary isotope effect demonstrates that the Si-H rupture is the rate-determining step of t …
1-Phenyl-1-propyne on Cu(111): TOFMS TPD, XPS, UPS, and 2PPE Studies.
Sohn Y, Wei W, White JM. Sohn Y, et al. Langmuir. 2007 Nov 20;23(24):12185-91. doi: 10.1021/la702241m. Epub 2007 Oct 30. Langmuir. 2007. PMID: 17967040
The bonding properties of 1-phenyl-1-propyne (PP, C6H5CCCH3) on Cu(111) at 100 K have been studied using temperature-programmed desorption (TPD), and X-ray, ultraviolet, and two-photon photoemission spectroscopies (XPS, UPS, and 2PPE). ...
The bonding properties of 1-phenyl-1-propyne (PP, C6H5CCCH3) on Cu(111) at 100 K have been studied using tempera …
Mechanochemical Ruthenium-Catalyzed Ortho-Alkenylation of N-Heteroaryl Arenes with Alkynes under Ball-Milling Conditions.
Bhawani, Shinde VN, Sonam, Rangan K, Kumar A. Bhawani, et al. J Org Chem. 2022 May 6;87(9):5994-6005. doi: 10.1021/acs.joc.2c00257. Epub 2022 Apr 26. J Org Chem. 2022. PMID: 35472259
A wide spectrum of arenes bearing N-heteroaryl moieties such as imidazo[1,2-a]pyridine, imidazo[1,2-a]pyrimidine, benzo[d]imidazo[2,1-b]thiazole, imidazo[2,1-b]thiazole, 2H-indazole, 1H-indazole, 1H-pyrazole, and 1,2,4-oxadiazol-5(4H)-one as a directing group reacted with various …
A wide spectrum of arenes bearing N-heteroaryl moieties such as imidazo[1,2-a]pyridine, imidazo[1,2-a]pyrimidine, benzo[d]imidazo[2,1-b]thia …
Reactions of carbene-stabilized borenium cations.
Lam J, Cao LL, Farrell JM, Stephan DW. Lam J, et al. Dalton Trans. 2020 Feb 14;49(6):1839-1846. doi: 10.1039/c9dt04731j. Epub 2020 Jan 22. Dalton Trans. 2020. PMID: 31965118
The reactions of 2 with cyclohexene or 3,3-dimethyl-1-butene gave the alkyl-aryl borenium salts [PhCH(2)(CHN)(2)CCH(2)C(6)H(4)BR][B(C(6)F(5))(4)] (R = Cy 4, CH(2)CH(2)tBu 5) while the corresponding reactions with diphenylacetylene, 1-hexyne and 1-phenyl-1- …
The reactions of 2 with cyclohexene or 3,3-dimethyl-1-butene gave the alkyl-aryl borenium salts [PhCH(2)(CHN)(2)CCH(2)C(6)H(4)BR][B(C(6)F(5) …
β-(Z)-Selective alkyne hydrosilylation by a N,O-functionalized NHC-based rhodium(I) catalyst.
González-Lainez M, Jiménez MV, Passarelli V, Pérez-Torrente JJ. González-Lainez M, et al. Dalton Trans. 2023 Aug 22;52(33):11503-11517. doi: 10.1039/d3dt01911j. Dalton Trans. 2023. PMID: 37534827
Hydrosilylation of internal alkynes, such as diphenylacetylene and 1-phenyl-1-propyne, selectively affords the syn-addition vinylsilane products. ...
Hydrosilylation of internal alkynes, such as diphenylacetylene and 1-phenyl-1-propyne, selectively affords the s …
Hydroboration of Imines and Alkynes Catalyzed by Electronically Unsaturated Aluminum Hydride and Methyl Aluminum Cations.
Bhandari M, Kaur M, Rawat S, Singh S. Bhandari M, et al. Inorg Chem. 2023 May 1;62(17):6598-6607. doi: 10.1021/acs.inorgchem.2c03775. Epub 2023 Apr 14. Inorg Chem. 2023. PMID: 37058528
Similarly, hydroalumination of an unsymmetric internal alkyne 1-phenyl-1-propyne with 2 occurs regioselectively, leading to the formation of [LAl-C(Me)CH(Ph)](+)[B(C(6)F(5))(4)](-) (8). ...
Similarly, hydroalumination of an unsymmetric internal alkyne 1-phenyl-1-propyne with 2 occurs regioselectively, …
Mesoporosity-Enabled Selectivity of Mesoporous Palladium-Based Nanocrystals Catalysts in Semihydrogenation of Alkynes.
Lv H, Qin H, Sun M, Jia F, Huang B, Liu B. Lv H, et al. Angew Chem Int Ed Engl. 2022 Feb 14;61(8):e202114539. doi: 10.1002/anie.202114539. Epub 2022 Jan 3. Angew Chem Int Ed Engl. 2022. PMID: 34913234
The best mesoporous PdP displayed full conversion, remarkable activity, excellent selectivity, and high stability in semihydrogenation of 1-phenyl-1-propyne, all of which are remarkably better than commercial Lindlar catalysts. ...
The best mesoporous PdP displayed full conversion, remarkable activity, excellent selectivity, and high stability in semihydrogenation of …
Palladium-catalyzed annulation of 9-halophenanthrenes with alkynes: synthesis, structural analysis, and properties of acephenanthrylene-based derivatives.
Liu EC, Chen MK, Li JY, Wu YT. Liu EC, et al. Chemistry. 2015 Mar 16;21(12):4755-61. doi: 10.1002/chem.201405763. Epub 2015 Feb 13. Chemistry. 2015. PMID: 25677694
The palladium-catalyzed annulation of 9-bromo- and 9-chlorophenanthrenes with alkynes gave 4,5-disubstituted acephenanthrylenes in yields of 58-95% (9 examples). Asymmetric alkynes, such as 1-phenyl-1-propyne, 1-phenyl-1-hexyne, and 1-cyclopropyl-2-phe …
The palladium-catalyzed annulation of 9-bromo- and 9-chlorophenanthrenes with alkynes gave 4,5-disubstituted acephenanthrylenes in yields of …
31 results