scholarly journals Breaking the bottleneck: stilbene as a model compound for optimizing 6π e− photocyclization efficiency

RSC Advances ◽  
2021 ◽  
Vol 11 (12) ◽  
pp. 6504-6508
Author(s):  
Joshua Seylar ◽  
Dmytro Stasiouk ◽  
Davide L. Simone ◽  
Vikas Varshney ◽  
James E. Heckler ◽  
...  
Keyword(s):  
Free Radical ◽  
Model Compound ◽  
Oxidative Cyclization

TEMPO is more effective than iodine in free-radical mediated, photochemical oxidative cyclization of stilbenes at elevated concentrations.

Free Radical Melt Grafting of Methacrylic ester onto Polyolefin Backbone: Model Compound Approach

2009 ◽  
Vol 275-276 (1) ◽  
pp. 275-281 ◽  
Author(s):  
T. Badel ◽  
E. Beyou ◽  
V. Bounor-Legaré ◽  
P. Chaumont ◽  
J.J. Flat ◽  
...  
Keyword(s):  
Free Radical ◽  
Model Compound ◽  
Melt Grafting

Oxidative cyclization of farnesyl acetate by a free radical path

1968 ◽  
Vol 9 (15) ◽  
pp. 1837-1840 ◽  
Author(s):  
Ronald Breslow ◽  
Stephen S. Olin ◽  
John T. Groves
Keyword(s):  
Free Radical ◽  
Oxidative Cyclization

Peroxide-Mediated Oxidative Radical Cyclization to the Quinazolinone System: Efficient Syntheses of Deoxyvasicinone, Mackinazolinone and (±)-Leucomidine C

Synthesis ◽  
2020 ◽  
Author(s):  
Luis D. Miranda ◽  
Jazmín García-Ramírez
Keyword(s):  
Natural Products ◽  
Free Radical ◽  
Total Synthesis ◽  
Radical Cyclization ◽  
Oxidative Cyclization ◽  
Dicumyl Peroxide ◽  
Cyclization Process ◽  
Radical Cascade ◽  
Oxidative Radical Cyclization

AbstractAn efficient protocol for obtaining fused quinazolinones through an oxidative free-radical cyclization under metal- and tin-free conditions is described. The oxidative cyclization of various N-3-ω-iodoalkyl derivatives to provide tricyclic systems using dicumyl peroxide as the sole reagent is studied. The method then is employed for the syntheses of 5-, 6-, and 7-membered fused quinazolinone analogues, including the natural products deoxyvasicinone and mackinazolinone. A xanthate-based oxidative radical cascade addition/cyclization process that allows the production of new menthol- and testosterone-quinazolinone conjugates, as well as the first total synthesis of leucomidine C, are also reported.

Metal-Free Radical Oxidative Cyclization of o-Azidoaryl Acetylenic Ketones with Sulfinic Acids To Access Sulfone-Containing 4-Quinolones

2016 ◽  
Vol 81 (24) ◽  
pp. 12181-12188 ◽  
Author(s):  
Nengneng Zhou ◽  
Zhongfei Yan ◽  
Honglin Zhang ◽  
Zhongkai Wu ◽  
Chengjian Zhu
Keyword(s):  
Free Radical ◽  
Oxidative Cyclization ◽  
Metal Free ◽  
Sulfinic Acids

Free-radical conversion of a lignin model compound catalyzed by Pd/C

2015 ◽  
Vol 17 (8) ◽  
pp. 4452-4458 ◽  
Author(s):  
Honglei Fan ◽  
Yingying Yang ◽  
Jinliang Song ◽  
Qinglei Meng ◽  
Tao Jiang ◽  
...  
Keyword(s):  
Free Radical ◽  
Sodium Carbonate ◽  
Model Compound ◽  
Reaction Pathway ◽  
Radical Reaction ◽  
Free Radical Reaction ◽  
Lignin Model Compound ◽  
Lignin Model ◽  
Benzyl Phenyl Ether ◽  
Radical Conversion

Benzyl phenyl ether can be decomposed into phenol and toluene effectively by using Pd/C as the catalyst in the presence of sodium carbonate and N-methyl-2-pyrrolidone via a free-radical reaction pathway.

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