TFA-promoted sulfonation/cascade cyclization of 2-propynolphenols with sodium sulfinates to 4-sulfonyl 2H-chromenes under metal-free conditions
Literature Information
Tao Yang, Peihao Kou, Fengyan Jin, Xian-Rong Song, Jiang Bai, Haixin Ding, Qiang Xiao, Yong-Min Liang
A novel, efficient and metal-free cascade sulfonylation/cyclization of 2-propynolphenols with commercially available sodium sulfinates was developed for the synthesis of 4-sulfonyl 2H-chromenes under mild conditions. The reaction occurred by the sodium sulfinates’ nucleophilic addition of the allylene carbocation intermediate followed by a 6-endo-trig pathway. Additionally, this approach avoids the use of an oxidant or a photo-radical inducer and the reaction can tolerate a wide variety of functional groups in good yields.
Recommended Journals

New Journal of Chemistry

Acta Materialia

Journal of Saudi Chemical Society

Russian Journal of Coordination Chemistry

Russian Journal of General Chemistry

Chemistry Education Research and Practice

Current Opinion in Colloid & Interface Science

Chemical Communications

Journal of Peptide Science

Current Opinion in Solid State & Materials Science
Related Literature
Two-sites are better than one: revisiting the OER mechanism on CoOOH by DFT with electrode polarization
Antton Curutchet, Pauline Colinet, Carine Michel, Stephan N. Steinmann, Tangui Le Bahers
DOI: 10.1039/D0CP00281J
The puzzling hyper-fine structure and an accurate equilibrium geometry of succinic anhydride
Michaela K. Jahn, Daniel A. Obenchain, K. P. Rajappan Nair, Jens-Uwe Grabow, Jean Demaison, Peter D. Godfrey, Don McNaughton
DOI: 10.1039/C9CP06775B
Correction: Enhancement of electron accepting ability of para-benzoquinone by a single water molecule
Golda Mensa-Bonsu, Aude Lietard, Jan R. R. Verlet
DOI: 10.1039/D0CP90056G
Germanene/GaGeTe heterostructure: a promising electric-field induced data storage device with high carrier mobility
Liang Zhang, Jin Zhang, Pei-ji Wang, Chang-Wen Zhang
DOI: 10.1039/C9CP06445A
Correction: Surface heterogeneity and inhomogeneous broadening of vibrational line profiles
Skandar Taj, Diane Baird, Alexander Rosu-Finsen, Martin R. S. McCoustra
DOI: 10.1039/C9CP90226K
The durability of carbon nanotubes in the selective reduction of nitrobenzene
Zhenzhen Guo, Nuoyi Zheng, Liyun Zhang, Zhijun Xia, Dehua Wang, Jianfen Shen, Hua Yan, Shuchang Wu, Hongyang Liu
DOI: 10.1039/D0CP00186D
Correction: Thermo-orientation in fluids of arbitrarily shaped particles
Andrea Gardin, Alberta Ferrarini
DOI: 10.1039/D0CP90053B
Mechanistic insight into photocrosslinking reaction between triplet state 4-thiopyrimidine and thymine
Xiaoran Zou, Zhonghua Sun, Hongmei Zhao, Chun-yang Zhang
DOI: 10.1039/C9CP04089G
Coalescence and wetting mechanism of Al droplets on different types of carbon for developing wettable cathodes: a molecular dynamics simulation
Xiaojun Lv, Chaohong Guan, Zexun Han, Chang Chen, Qidong Sun
DOI: 10.1039/C9CP03673C
You might also like
Is 6-(3-Fluorophenyl)picolinic acid (CAS: 887982-40-3) safe?
6-(3-Fluorophenyl)picolinic acid is generally considered safe for laboratory use...
What industries use (3R)-3-Pyrrolidinol (CAS: 2799-21-5)?
(3R)-3-Pyrrolidinol is used in the pharmaceutical industry as a precursor for dr...
What precautions should be taken when handling (4R,5R)-4,5-Diethoxycarbonyl-2,2-dimethyldioxolane (CAS: 59779-75-8)?
When handling (4R,5R)-4,5-Diethoxycarbonyl-2,2-dimethyldioxolane (CAS: 59779-75-...
How is 1-(6-Chloroimidazo[1,2-b]pyridazin-3-yl)ethanone (CAS: 90734-71-7) typically synthesized?
1-(6-Chloroimidazo[1,2-b]pyridazin-3-yl)ethanone is often synthesized via a mult...
What is the market or research trend for N-Ethyl-3,4-dimethylbenzylamine (CAS: 39180-83-1)?
The market for N-Ethyl-3,4-dimethylbenzylamine (CAS: 39180-83-1) remains steady,...
What is Tert-butyl 3-(pyrrolidin-1-yl)azetidine-1-carboxylate (CAS: 1019008-21-9)?
Tert-butyl 3-(pyrrolidin-1-yl)azetidine-1-carboxylate is a chemical compound wit...
What regulatory guidelines apply to 1-Bromo-3-chloro-2,4-dimethoxybenzene (CAS: 1228956-93-1)?
1-Bromo-3-chloro-2,4-dimethoxybenzene (CAS: 1228956-93-1) falls under the classi...
Is 8-Bromo-2-methyl-3,4-dihydroisoquinolin-1(2H)-one (CAS: 1368622-07-4) safe?
The safety of 8-Bromo-2-methyl-3,4-dihydroisoquinolin-1(2H)-one (CAS: 1368622-07...
Is Benzyl [(3S)-2,6-dioxo-3-piperidinyl]carbamate (CAS: 22785-43-9) safe?
Benzyl [(3S)-2,6-dioxo-3-piperidinyl]carbamate is generally safe when handled wi...
How should 1-{[4-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl]sulfonyl}pyrrolidine (CAS: 928657-21-0) be stored?
1-{[4-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl]sulfonyl}pyrrolidine s...
Source Journal
Organic Chemistry Frontiers

Organic Chemistry Frontiers publishes high-quality research from across organic chemistry. Emphases are placed on studies that make significant contributions to the field of organic chemistry by reporting either new or significantly improved protocols or methodologies. Topics include, but are not limited to the following: Organic synthesis Development of synthetic methodologies Catalysis Natural products Functional organic materials Supramolecular and macromolecular chemistry Physical and computational organic chemistry

![(3R,4aR,7aS,9aR,10S,11R,13aR,13bS,15aS,15bR)-3,11-Dihydroxy-10-(hydroxymethyl)-4,4,7a,10,13a,15b-hexamethyl-1,2,3,4,4a,7,7a,8,9,9a,10,11,12,13,13a,13b,14,15,15a,15b-icosahydro-5H-naphtho[2',1':4,5]cyc
lohepta[1,2-a]naphthalen-5-one structure (3R,4aR,7aS,9aR,10S,11R,13aR,13bS,15aS,15bR)-3,11-Dihydroxy-10-(hydroxymethyl)-4,4,7a,10,13a,15b-hexamethyl-1,2,3,4,4a,7,7a,8,9,9a,10,11,12,13,13a,13b,14,15,15a,15b-icosahydro-5H-naphtho[2',1':4,5]cyc
lohepta[1,2-a]naphthalen-5-one structure](https://static.chemtradehub.com/structs/538/53800-21-8-9f18.webp)
![1H-Imidazo[4,5-c]pyridine-7-carboxylic acid structure 1H-Imidazo[4,5-c]pyridine-7-carboxylic acid structure](https://static.chemtradehub.com/structs/123/1234616-39-7-1344.webp)
![1-Benzyl-1,7-diazaspiro[4.4]nonane dihydrochloride structure 1-Benzyl-1,7-diazaspiro[4.4]nonane dihydrochloride structure](https://static.chemtradehub.com/structs/115/1159822-71-5-0320.webp)
