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Quoted phrases not found in phrase index: "ethyl 2-propynoate", "propiolic acid ethyl ester"
Page 1
[Bisbenzothieno[3,2-b: 2',3'-e]pyridines].
Görlitzer K, Meyer H. Görlitzer K, et al. Pharmazie. 2004 Sep;59(9):673-5. Pharmazie. 2004. PMID: 15497746 German.
Heating potassium 3-aminobenzo[b]thiophene-2-carboxylate (1) with ethyl propiolate or ethyl 3-ethoxyacrylate in acetic acid yielded the ethyl 2-(6,12-Dihydro-bis[1]benzothieno[3,2-b:2',3'-e]pyridin-6-yl)acetate (3) as main product and 1,4-dihydro-[1]benzothieno[3,2- …
Heating potassium 3-aminobenzo[b]thiophene-2-carboxylate (1) with ethyl propiolate or ethyl 3-ethoxyacrylate in acetic acid yi …
Synthesis, Characterization and Cytotoxic Evaluation of New Pyrrolo[1,2-b]pyridazines Obtained via Mesoionic Oxazolo-Pyridazinones.
Ivan BC, Barbuceanu SF, Hotnog CM, Olaru OT, Anghel AI, Ancuceanu RV, Mihaila MA, Brasoveanu LI, Shova S, Draghici C, Nitulescu GM, Dumitrascu F. Ivan BC, et al. Int J Mol Sci. 2023 Jul 19;24(14):11642. doi: 10.3390/ijms241411642. Int J Mol Sci. 2023. PMID: 37511401 Free PMC article.
New pyrrolo[1,2-b]pyridazines were synthesized by 3 + 2 cycloaddition reaction between mesoionic oxazolo-pyridazinones and methyl/ethyl propiolate. The mesoionic compounds were generated in situ by action of acetic anhydride on 3(2H)pyridazinone acids obtained from …
New pyrrolo[1,2-b]pyridazines were synthesized by 3 + 2 cycloaddition reaction between mesoionic oxazolo-pyridazinones and methyl/ethyl …
Novel amphiphilic dextran esters with antimicrobial activity.
Stanciu MC, Belei D, Bicu E, Tuchilus CG, Nichifor M. Stanciu MC, et al. Int J Biol Macromol. 2020 May 1;150:746-755. doi: 10.1016/j.ijbiomac.2020.02.021. Epub 2020 Feb 6. Int J Biol Macromol. 2020. PMID: 32035962
Nitrogen-containing heterocyclic derivatives were achieved by copper(I)-catalyzed cycloaddition reaction between organic azides and ethyl propiolate. Structural characteristics of the compounds were studied by elemental analysis, Fourier transform infrared and nucle …
Nitrogen-containing heterocyclic derivatives were achieved by copper(I)-catalyzed cycloaddition reaction between organic azides and ethyl …
Solid-state silica gel-catalyzed synthesis of fluorescent polysubstituted 1,4- and 1,2-dihydropyridines.
Aleksić J, Stojanović M, Bošković J, Baranac-Stojanović M. Aleksić J, et al. Org Biomol Chem. 2023 Feb 8;21(6):1187-1205. doi: 10.1039/d2ob02119f. Org Biomol Chem. 2023. PMID: 36648494
We present the green, highly atom-economical, solid-state silica gel-catalyzed synthesis of polysubstituted 1,4- and 1,2-dihydropyridines (DHPs) from commercially available materials, amines and ethyl propiolate. The DHP skeleton was assembled by heating the reactan …
We present the green, highly atom-economical, solid-state silica gel-catalyzed synthesis of polysubstituted 1,4- and 1,2-dihydropyridines (D …
Ethyl 1,3,10,12-tetra-phenyl-19,20-dioxa-hexa-cyclo-[10.6.1.1.0.0.0]icosa-4(9),5,7,13(18),14,16-hexa-ene-2-carboxyl-ate.
Narayanan P, Sethusankar K, Nandhakumar M, Mohanakrishnan AK. Narayanan P, et al. Acta Crystallogr Sect E Struct Rep Online. 2010 Nov 13;66(Pt 12):o3155. doi: 10.1107/S1600536810045873. Acta Crystallogr Sect E Struct Rep Online. 2010. PMID: 21589453 Free PMC article.
The title compound, C(45)H(34)O(4), is the product of a tandem 'pincer' Diels-Alder reaction consisting of two consecutive [4 + 2] cyclo-additions between two 2-benzofuran units and ethyl propiolate. The mol-ecule comprises a fused hexa-cyclic system containing four …
The title compound, C(45)H(34)O(4), is the product of a tandem 'pincer' Diels-Alder reaction consisting of two consecutive [4 + 2] cyclo-add …
Divergent reactivity of a new dinuclear xanthene-bridged bis(iminopyridine) di-nickel complex with alkynes.
Hollingsworth RL, Bheemaraju A, Lenca N, Lord RL, Groysman S. Hollingsworth RL, et al. Dalton Trans. 2017 May 2;46(17):5605-5616. doi: 10.1039/c6dt04532d. Dalton Trans. 2017. PMID: 28112311
Treatment of Ni(2)(L)(DPA) with one equivalent of ethyl propiolate (HCCCO(2)Et) forms the Ni(2)(L)(HCCCO(2)Et) complex. Addition of the second equivalent of ethyl propiolate leads to the observation of cyclotrimerised products by (1)H NMR spectroscopy. …
Treatment of Ni(2)(L)(DPA) with one equivalent of ethyl propiolate (HCCCO(2)Et) forms the Ni(2)(L)(HCCCO(2)Et) complex. Additi …
Substrate-controlled and site-selective [3+2] cycloadditions of N-heterocyclic carbene derived ambident dipoles.
Cheng Y, Liu MF, Fang DC, Lei XM. Cheng Y, et al. Chemistry. 2007;13(15):4282-92. doi: 10.1002/chem.200601482. Chemistry. 2007. PMID: 17323390
2-aryl thiocarbamoyl benzimidazolium and imidazolinium inner salts derived from benzimidazole and imidazoline carbenes are unique ambident C-C-S and C-C-N 1,3-dipolar systems, which undergo highly efficient and site-selective cycloaddition reactions with dimethyl acetylenedicarbo …
2-aryl thiocarbamoyl benzimidazolium and imidazolinium inner salts derived from benzimidazole and imidazoline carbenes are unique ambident C …
A N-heterocyclic carbene derived highly regioselective ambident C-C-S and C-C-N 1,3-dipolar system.
Liu MF, Wang B, Cheng Y. Liu MF, et al. Chem Commun (Camb). 2006 Mar 21;(11):1215-7. doi: 10.1039/b517700f. Epub 2006 Feb 1. Chem Commun (Camb). 2006. PMID: 16518495
N-Heterocyclic carbene derived 2-phenylthiocarbamoyl benzimidazolium and imidazolinium inner salts are a unique ambident C-C-S and C-C-N 1,3-dipolar system able to undergo highly efficient and regioselective cycloaddition with dimethyl acetylenedicarboxylate and ethyl p …
N-Heterocyclic carbene derived 2-phenylthiocarbamoyl benzimidazolium and imidazolinium inner salts are a unique ambident C-C-S and C-C-N 1,3 …
Preparation of triazolo[1,5-c]pyrimidines as potential antiasthma agents.
Medwid JB, Paul R, Baker JS, Brockman JA, Du MT, Hallett WA, Hanifin JW, Hardy RA Jr, Tarrant ME, Torley LW, et al. Medwid JB, et al. J Med Chem. 1990 Apr;33(4):1230-41. doi: 10.1021/jm00166a023. J Med Chem. 1990. PMID: 1969485
These compounds were prepared by reacting arylamidines with sodium ethyl formylacetate or with ethyl propiolate to give pyrimidinones. Treatment with phosphorus oxychloride gave a chloropyrimidine, which was converted to a hydrazinopyrimidine with hydrazine. ...
These compounds were prepared by reacting arylamidines with sodium ethyl formylacetate or with ethyl propiolate to give pyrimi …
Scalable Sonochemical Synthetic Strategy for Pyrazolo[1,5-a]pyridine Derivatives: First Catalyst-Free Concerted [3 + 2] Cycloaddition of Alkyne and Alkene Derivatives to 2-Imino-1H-pyridin-1-amines.
Ibrahim HM, Behbehani H, Mostafa NS. Ibrahim HM, et al. ACS Omega. 2019 Apr 19;4(4):7182-7193. doi: 10.1021/acsomega.9b00562. eCollection 2019 Apr 30. ACS Omega. 2019. PMID: 31459824 Free PMC article.
A highly efficient and convenient one-pot sonochemical synthetic strategy has been sophisticated for synthesizing a novel class of polysubstituted pyrazolo[1,5-a]pyridines via [3 + 2] cycloaddition of dialkyl acetylenedicarboxylates, ethyl propiolate, and alkenes to …
A highly efficient and convenient one-pot sonochemical synthetic strategy has been sophisticated for synthesizing a novel class of polysubst …
71 results