Recent Advances in the Construction of Spiro Compounds via Radical Dearomatization

WC Yang, MM Zhang, JG Feng - Advanced Synthesis & …, 2020 - Wiley Online Library
The field in dearomatization of aromatic compounds for the construction of spirocycle
compounds has been developed rapidly over the last two decades and it provides …

Electrochemical dearomative spirocyclization

N Li, Z Shi, WZ Wang, Y Yuan… - Chemistry–An Asian …, 2023 - Wiley Online Library
Electrochemical dearomative spirocyclization serves as a green and sustainable approach
to convert the flat, two‐dimension aromatic feedstock into the value‐added three‐dimension …

Electrochemical Trifluoromethylthiolation and Spirocyclization of Alkynes with AgSCF3: Access to SCF3-Containing Spiro[5,5]trienones

WC Yang, MM Zhang, Y Sun, CY Chen, L Wang - Organic Letters, 2021 - ACS Publications
A novel and efficient strategy for trifluoromethylthiolation and dearomatization of activated
alkynes with stable and readily available AgSCF3 has been developed. Reported herein is …

Electrochemical Selenylative Carbannulation of Biaryl Ynones to Seleno-Dibenzocycloheptenones/Spiro [5.5] Trienones

C Raji Reddy, DH Kolgave - The Journal of Organic Chemistry, 2021 - ACS Publications
Electrooxidative-induced synthesis of structurally diverse seleno-dibenzocyclohepten-5-
ones and seleno-spiro [5.5] trienones by selenylative carbannulation of biaryl ynones with …

Asymmetric direct/stepwise dearomatization reactions involving hypervalent iodine reagents

R Kumar, FV Singh, N Takenaga… - Chemistry–An Asian …, 2022 - Wiley Online Library
A remarkable growth in hypervalent iodine‐mediated oxidative transformations as
stoichiometric reagents as well as catalysts has been well‐documented due to their …

Visible-light-enabled spirocyclization of alkynes leading to 3-sulfonyl and 3-sulfenyl azaspiro [4, 5] trienones

W Wei, H Cui, D Yang, H Yue, C He, Y Zhang… - Green …, 2017 - pubs.rsc.org
A mild and convenient visible-light-induced method has been developed for the construction
of 3-sulfonyl and 3-sulfenyl azaspiro [4, 5] trienones through metal-free difunctionalization of …

Ag-Catalyzed Oxidative ipso-Cyclization via Decarboxylative Acylation/Alkylation: Access to 3-Acyl/Alkyl-spiro[4.5]trienones

CR Reddy, DH Kolgave, M Subbarao, M Aila… - Organic …, 2020 - ACS Publications
A strategy to functionalized spiro [4.5] trienones, by domino silver-catalyzed decarboxylative
acylation or alkylation/ipso-cyclization of N-arylpropiolamides with α-keto acids/alkyl …

Electrochemical Oxidative Halogenation of N-Aryl Alkynamides for the Synthesis of Spiro[4.5]trienones

K Yu, X Kong, J Yang, G Li, B Xu… - The Journal of Organic …, 2020 - ACS Publications
We developed a green method for the synthesis of spiro [4.5] trienones through an
electrochemical oxidative halocyclization with N-aryl alkynamides. This reaction was …

Electrochemical Synthesis of Spiro [4.5] trienones through Radical‐Initiated Dearomative Spirocyclization

J Hua, Z Fang, M Bian, T Ma, M Yang, J Xu… - …, 2020 - Wiley Online Library
A novel and green route has been developed for the electrochemical synthesis of spiro [4.5]
trienones through radical‐initiated dearomative spirocyclization of alkynes with diselenides …

Electrochemical monofluoroalkylation cyclization of N-arylacrylamides to construct monofluorinated 2-oxindoles

Y Lv, ZW Hou, Y Wang, P Li, L Wang - Organic & Biomolecular …, 2023 - pubs.rsc.org
An electrochemical monofluoroalkylation cyclization of N-arylacrylamides to synthesize
monofluorinated 2-oxindoles has been developed, which employs common dimethyl 2 …