Photocatalyzed/base-mediated defluorinative three-component cascade cyclization: Access to monofluorocyclohexenes and 6-fluoro-1,2,3,4-tetrahydropyridines
Data files
May 22, 2025 version files 33.80 MB
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README.md
6.78 KB
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Spectra.zip
33.79 MB
Abstract
A three-component cascade cyclization of α-CF3 alkenes, electron-rich alkenes, and dimethyl esters or sulfonamides via a dual C-F bond cleavage process is described. This methodology provides a general and efficient strategy to access monofluorocyclohexenes and 6-fluoro-1,2,3,4-tetrahydropyridines by switching the bifunctional reagents (dimethyl esters or sulfonamides), which are valuable building blocks in synthetic chemistry and the pharmaceutical industries. The reaction mechanism and the synthetic applications of the products have been demonstrated.
1H NMR, 19F NMR, 13C NMR spectra, and high-resolution mass spectra (HRMS) in the Spectra.zip file are used to describe the structure and the exact molecular mass of 46 new compounds in the publication: Photocatalyzed/base-mediated defluorinative three-component cascade cyclization: Access to monofluorocyclohexenes and 6-fluoro-1,2,3,4-tetrahydropyridines. (DOI:10.1021/acs.orglett.5c00675)
Description of the data and file structure
Spectra.zip includes FID for Publication.zip and a folder named HRMS for Publication. The documents are classified and named for the compound number designated in the manuscript and SI, and by 1H, 13C, or 19F for 1H NMR, 13C NMR, or 19F NMR, respectively.
Abbreviations used are as follows:
NMR: nuclear magnetic resonance
SI: supporting information (meaning, Supplementary Materials document)
HRMS: high-resolution mass spectra
The full name of the compounds represented by the compound number
4a: dimethyl 2-(4-([1,1'-biphenyl]-4-yl)-2-butoxy-5,5-difluoropent-4-en-1-yl) malonate
5a: dimethyl 5-butoxy-2-fluoro-5,6-dihydro-[1,1':4',1''-terphenyl]-3,3(4H)-dicarboxylate
5b: dimethyl 5-butoxy-2-fluoro-5,6-dihydro-[1,1'-biphenyl]-3,3(4H)-dicarboxylate
5c: dimethyl 5-butoxy-2-fluoro-4'-methyl-5,6-dihydro-[1,1'-biphenyl]-3,3(4H)-dicarboxylate
5d: dimethyl 5-butoxy-4'-(tert-butyl)-2-fluoro-5,6-dihydro-[1,1'-biphenyl]-3,3(4H)-dicarboxylate
5e: dimethyl 5-butoxy-2-fluoro-4'-methoxy-5,6-dihydro-[1,1'-biphenyl]-3,3(4H)-dicarboxylate
5f: dimethyl 5-butoxy-4'-chloro-2-fluoro-5,6-dihydro-[1,1'-biphenyl]-3,3(4H)-dicarboxylate
5g: dimethyl 5-butoxy-4'-cyano-2-fluoro-5,6-dihydro-[1,1'-biphenyl]-3,3(4H)-dicarboxylate
5h: trimethyl 5-butoxy-2-fluoro-5,6-dihydro-[1,1'-biphenyl]-3,3,4'(4H)-tricarboxylate
5i: dimethyl 5-butoxy-2-fluoro-3'-methyl-5,6-dihydro-[1,1'-biphenyl]-3,3(4H)-dicarboxylate
5j: dimethyl 5-butoxy-2-fluoro-3-(naphthalen-1-yl)cyclohex-2-ene-1,1-dicarboxylate
5k: dimethyl 5-butoxy-2-fluoro-3-(naphthalen-2-yl)cyclohex-2-ene-1,1-dicarboxylate
5l: dimethyl 5-butoxy-2-fluoro-3-(quinolin-3-yl)cyclohex-2-ene-1,1-dicarboxylate
5m: dimethyl 5-acetoxy-2-fluoro-5,6-dihydro-[1,1':4',1''-terphenyl]-3,3(4H)-dicarboxylate
5n: dimethyl 2-fluoro-5-(2-oxopyrrolidin-1-yl)-5,6-dihydro-[1,1':4',1''-terphenyl]-3,3(4H)-dicarboxylate
5o: dimethyl 5-butyl-2-fluoro-5,6-dihydro-[1,1':4',1''-terphenyl]-3,3(4H)-dicarboxylate
5p: dimethyl 5-benzyl-2-fluoro-5,6-dihydro-[1,1':4',1''-terphenyl]-3,3(4H)-dicarboxylate
5q: dimethyl 5-((1,3-dioxoisoindolin-2-yl)methyl)-2-fluoro-5,6-dihydro-[1,1':4',1''-terphenyl]-3,3(4H)-dicarboxylate
5r: dimethyl 5-acetoxy-2-fluoro-5-methyl-5,6-dihydro-[1,1':4',1''-terphenyl]-3,3(4H)-dicarboxylate
5s: 9-ethyl 2,2-dimethyl 4-([1,1'-biphenyl]-4-yl)-3-fluorospiro[5.5]undec-3-ene-2,2,9-tricarboxylate
5t: dimethyl 6-([1,1'-biphenyl]-4-yl)-5-fluoro-1,2,3,3a,7,7a-hexahydro-4H-indene-4,4-dicarboxylate
5u: dimethyl 6-([1,1'-biphenyl]-4-yl)-5-fluoro-3,3a,7,7a-tetrahydrobenzofuran-4,4(2H)-dicarboxylate
5v: dimethyl 7-([1,1'-biphenyl]-4-yl)-6-fluoro-2,3,4,4a,8,8a-hexahydro-5H-chromene-5,5-dicarboxylate
5w: methyl (7aR)-5-([1,1'-biphenyl]-4-yl)-4-fluoro-7,7-dimethyl-3-oxo-1,6,7,7a-tetrahydroisobenzofuran-3a(3H)-carboxylate
7a: 5-([1,1'-biphenyl]-4-yl)-3-butoxy-6-fluoro-1-tosyl-1,2,3,4-tetrahydropyridine
7b: 3-butoxy-6-fluoro-5-(4-methoxyphenyl)-1-tosyl-1,2,3,4-tetrahydropyridine
7c: methyl-4-(5-butoxy-2-fluoro-1-tosyl-1,4,5,6-tetrahydropyridin-3-yl)benzoate
7d: 3-butoxy-5-(3-chlorophenyl)-6-fluoro-1-tosyl-1,2,3,4-tetrahydropyridine
7e: 5-([1,1'-biphenyl]-2-yl)-3-butoxy-6-fluoro-1-tosyl-1,2,3,4-tetrahydropyridine
7f: 5-(benzo[b]thiophen-3-yl)-3-butoxy-6-fluoro-1-tosyl-1,2,3,4-tetrahydropyridine
7g: 3-(5-butoxy-2-fluoro-1-tosyl-1,4,5,6-tetrahydropyridin-3-yl)quinoline
7h: 5-([1,1'-biphenyl]-4-yl)-3-(benzyloxy)-6-fluoro-1-tosyl-1,2,3,4-tetrahydropyridine
7i: methyl 4-([1,1'-biphenyl]-4-yl)-3-fluoro-2-tosyl-2-azaspiro[5.5]undec-3-ene-9-carboxylate
7j: 5-([1,1'-biphenyl]-4-yl)-6-fluoro-3-methoxy-3-methyl-1-tosyl-1,2,3,4-tetrahydropyridine
7k: 5-([1,1'-biphenyl]-4-yl)-6-fluoro-3-methyl-3-phenoxy-1-tosyl-1,2,3,4-tetrahydropyridine
7l: 5-([1,1'-biphenyl]-4-yl)-3-(((10S,13S,14R)-10,13-dimethyl-16-((S)-6-methylheptan-2-yl)-2,3,4,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-3-yl)oxy)-6-fluoro-1-tosyl-1,2,3,4-tetrahydropyridine
7m: 5-([1,1'-biphenyl]-4-yl)-3-(((3aR,5S,6S,6aR)-5-((S)-4,4-dimethyl-1,3-dioxolan-2yl)-2,2-dimethyltetrahydrofuro[2,3-d][1,3]dioxol-6-yl)oxy)-6-fluoro-1-tosyl-1,2,3,4-tetrahydropyridine
7n: 5-([1,1'-biphenyl]-4-yl)-3-butoxy-6-fluoro-1-(phenylsulfonyl)-1,2,3,4-tetrahydropyridine
7o: 5-([1,1'-biphenyl]-4-yl)-3-butoxy-6-fluoro-1-(methylsulfonyl)-1,2,3,4-tetrahydropyridine
7p: 5-([1,1'-biphenyl]-4-yl)-3-butoxy-1-(cyclopropylsulfonyl)-6-fluoro-1,2,3,4-tetrahydropyridine
8: methyl 5-butoxy-2-fluoro-3,4,5,6-tetrahydro-[1,1':4',1''-terphenyl]-3-carboxylate
9: 8-([1,1'-biphenyl]-4-yl)-10-butoxy-7-fluoro-2,4-diazaspiro[5.5]undec-7-ene-1,3,5-trione
10: 8-([1,1'-biphenyl]-4-yl)-10-butoxy-7-fluoro-3,3-dimethyl-2,4-dioxaspiro[5.5]undec-7-ene
11: 5-([1,1'-biphenyl]-4-yl)-3-butoxy-6-methoxy-2,3,4,5-tetrahydropyridine
12: 3-([1,1'-biphenyl]-4-yl)-5-butoxypyridine 4-methylbenzenesulfonate
13: dimethyl 2-((2-(2-([1,1'-biphenyl]-4-yl)-3,3-difluoroallyl)-6,6-dimethylbicyclo[3.1.1]heptan-2-yl)methyl)malonate
FID for Publication.zip
Includes 1H NMR, 19F NMR, 13C NMR spectra fid documents of compounds 4a, 5a-5w, 7a-7p, 8-13. The data files are packaged into folders for each compound characterized in the manuscript. The data are structured in folders for each NMR spectrum. Each folder contains the fid files and all acquisition and processing parameters used while obtaining the NMR spectrum. The folder should provide all information necessary to open the data and display the NMR spectrum in the NMR processing software. Mestrenova. Accessing this data will allow users to view NMR spectra interactively.
HRMS for Publication folder
Includes .png and .pdf documents of high-resolution mass spectra test figures of compounds 4a,5a-5w, 7a-7p,8-13. The exact molecular mass of each compound can be found in the figure.
Sharing/access Information
NMR data will be available as images, and HRMS data will be provided as the extracted mass values in the SI for this manuscript.
