Results 141 to 150 of about 2,874,801 (150)

Gold-Catalyzed Ammonium Acetate Assisted Cascade Cyclization of 2-Alkynylarylketones.

Journal of Organic Chemistry, 2015
An ammonium acetate assisted gold-catalyzed cascade cyclization reaction of 2-alkynylarylketones is described. Under the reported conditions, a gold-catalyzed intramolecular cyclization of 2-alkynylarylketones takes place through two competing reaction ...
M. Domaradzki, Y. Long, Zhigang She, Xiaochen Liu, Gan Zhang, Yu Chen   +5 more
semanticscholar   +1 more source

Biosynthetic Mechanism of Lanosterol: Cyclization.

Angewandte Chemie, 2015
The remarkable cyclization mechanism of the formation of the 6-6-6-5 tetracyclic lanosterol (a key triterpenoid intermediate in the biosynthesis of cholesterol) from the acyclic 2,3-oxidosqualene catalyzed by oxidosqualene cyclase (OSC) has stimulated ...
N. Chen, Shenglong Wang, L. Smentek, B. Hess, Ruibo Wu   +4 more
semanticscholar   +1 more source

Photoredox-catalyzed tandem radical cyclization of N-arylacrylamides: general methods to construct fluorinated 3,3-disubstituted 2-oxindoles using fluoroalkylsulfonyl chlorides.

Organic Letters, 2014
Fluorinated radicals were generated from RfSO2Cl by photoredox catalysis under mild conditions, where Rf = n-C4F9, CF3, CF2H, CH2F, CH2CF3, and CF2CO2Me.
Xiaojun Tang, Charles S. Thomoson, W. Dolbier   +2 more
semanticscholar   +1 more source

Tunable arylative cyclization of 1,6-enynes triggered by rhodium(III)-catalyzed C-H activation.

Journal of the American Chemical Society, 2014
Two tunable arylative cyclizations of cyclohexadienone-containing 1,6-enynes are reported via rhodium(III)-catalyzed C-H activation of O-substituted N-hydroxybenzamides. The use of different O substituents, i.e.
Y. Fukui, Ping Liu, Qiang Liu, Zhiheng He, N. Wu, Ping Tian, G. Lin   +6 more
semanticscholar   +1 more source

Cyclization and annulation reactions of nitrogen-substituted cyclopropanes and cyclobutanes.

Chemical Communications, 2014
Cyclization and annulation reactions initiated by ring-opening of small rings, especially cyclopropanes and cyclobutanes are now well-established in synthetic chemistry.
F. Nanteuil, F. D. Simone, Reto Frei, F. Benfatti, E. Serrano, J. Waser   +5 more
semanticscholar   +1 more source

A free radical cascade cyclization of isocyanides with simple alkanes and alcohols.

Organic Letters, 2014
A copper-catalyzed free-radical cascade cyclization of isocyanides with simple alkanes and alcohols was developed, which allowed convenient access to various alkyl-substituted phenanthridines.
Zejiang Li, Fenghua Fan, J. Yang, Zhong-Quan Liu   +3 more
semanticscholar   +1 more source

NUDT21 regulates circRNA cyclization and ceRNA crosstalk in hepatocellular carcinoma

Oncogene, 2019
Xiaojing Li, Junyao Ding, Xueying Wang, Zeneng Cheng, Qubo Zhu   +4 more
semanticscholar   +1 more source

Reversible Bergman cyclization by atomic manipulation.

Nature Chemistry, 2016
B. Schuler, Shadi Fatayer, Fabian Mohn, N. Moll, N. Pavliček, G. Meyer, D. Peña, L. Gross   +7 more
semanticscholar   +1 more source

Terpene cyclization catalysed inside a self-assembled cavity.

Nature Chemistry, 2015
Q. Zhang, K. Tiefenbacher
semanticscholar   +1 more source

Tandem Radical Cyclization of N-Arylacrylamides: An Emerging Platform for the Construction of 3,3-Disubstituted Oxindoles

Synthesis, 2014
Jia‐Rong Chen, Xiao-Ye Yu, W. Xiao
semanticscholar   +1 more source