Metal-free oxidative ring contraction of benzodiazepinones: an entry to quinoxalinones

2017 ◽  
Vol 15 (14) ◽  
pp. 3060-3068 ◽  
Author(s):  
Hasan Mtiraoui ◽  
Kevin Renault ◽  
Morgane Sanselme ◽  
Moncef Msaddek ◽  
Pierre-Yves Renard ◽  
...  
Keyword(s):  
Practical Method ◽  
Ring Contraction ◽  
Metal Free

Herein is reported a practical method for the construction of 3-benzoylquinoxalinones from benzodiazepinones in the presence of DMSO which serves both as a solvent and an oxidant.

scholarly journals Correction: Metal-free oxidative ring contraction of benzodiazepinones: an entry to quinoxalinones

2017 ◽  
Vol 15 (35) ◽  
pp. 7474-7475 ◽  
Author(s):  
Hasan Mtiraoui ◽  
Kevin Renault ◽  
Morgane Sanselme ◽  
Moncef Msaddek ◽  
Pierre-Yves Renard ◽  
...  
Keyword(s):  
Ring Contraction ◽  
Metal Free

Correction for ‘Metal-free oxidative ring contraction of benzodiazepinones: an entry to quinoxalinones’ by Hasan Mtiraoui, et al., Org. Biomol. Chem., 2017, 15, 3060–3068.

Visible-light promoted aerobic difunctionalization of alkenes with sulfonyl hydrazides for the synthesis of β-keto/hydroxyl sulfones

2019 ◽  
Vol 17 (14) ◽  
pp. 3507-3513 ◽  
Author(s):  
Jie Wu ◽  
Yulan Zhang ◽  
Xinchi Gong ◽  
Yunge Meng ◽  
Chunyin Zhu
Keyword(s):  
Visible Light ◽  
Practical Method ◽  
Metal Free

A practical method has been developed for the conversion of alkenes to β-keto/hydroxyl sulfones by their reaction with sulfonyl hydrazides under metal-free conditions.

scholarly journals Morpholin-2-one Derivatives via Intramolecular Acid-Catalyzed Hydroamination

Synthesis ◽  
2019 ◽  
Vol 51 (07) ◽  
pp. 1643-1648 ◽  
Author(s):  
David Knight ◽  
Thomas Wirth ◽  
Abdul Hadi Aldmairi
Keyword(s):  
Amino Acids ◽  
Catalytic Amount ◽  
Practical Method ◽  
Trifluoromethanesulfonic Acid ◽  
Reaction Conditions ◽  
Available N ◽  
Metal Free ◽  
Acid Catalyzed

Substituted morpholin-2-one derivatives were readily obtained in two steps starting from commercially available N-protected amino acids. In a metal-free and practical method, a catalytic amount of trifluoromethanesulfonic acid was sufficient to generate morpholinones under mild reaction conditions in an intramolecular hydroamination reaction in good to excellent yields.

Metal-free regioselective C–H chalcogenylation of coumarins/(hetero)arenes at ambient temperature

2020 ◽  
Vol 56 (12) ◽  
pp. 1847-1850
Author(s):  
Zengqiang Song ◽  
Chaochao Ding ◽  
Shaoli Wang ◽  
Qian Dai ◽  
Yaoguang Sheng ◽  
...  
Keyword(s):  
Ambient Temperature ◽  
Room Temperature ◽  
Practical Method ◽  
Metal Free

A novel and practical method for the direct regioselective chalcogenylation of coumarins at the C3-postion and selenation of other (hetero)arenes has been achieved using PIFA as a promoter at room temperature.

Metal-free enaminone C-N bond cyanation for stereoselective synthesis of (E)- and (Z)-β-cyano enones

2021 ◽  
Author(s):  
Ting Liu ◽  
Jie-Ping Wan ◽  
Yunyun Liu
Keyword(s):  
Stereoselective Synthesis ◽  
Bond Cleavage ◽  
Bond Formation ◽  
Practical Method ◽  
Efficient Synthesis ◽  
Metal Free

A highly practical method for C-CN bond formation by C-N bond cleavage on enaminones leading to the efficient synthesis of β-cyano enones is developed. The reactions take place efficiently to...

A Practical Method for Metal-Free Radical Trifluoromethylation of Styrenes with NaSO2CF3

Synlett ◽  
2014 ◽  
Vol 25 (09) ◽  
pp. 1307-1311 ◽  
Author(s):  
Hai-Qing Luo ◽  
Xu-Zhong Luo ◽  
Zhi-Peng Zhang ◽  
Wen Dong
Keyword(s):  
Free Radical ◽  
Practical Method ◽  
Metal Free

ChemInform Abstract: A Practical Method for Metal-Free Radical Trifluoromethylation of Styrenes with NaSO2CF3.

ChemInform ◽  
2014 ◽  
Vol 45 (49) ◽  
pp. no-no
Author(s):  
Hai-Qing Luo ◽  
Zhi-Peng Zhang ◽  
Wen Dong ◽  
Xu-Zhong Luo
Keyword(s):  
Free Radical ◽  
Practical Method ◽  
Metal Free

A Mild and Practical Method for Deprotection of Aryl Methyl/ Benzyl/Allyl Ethers with HPPh2 and tBuOK

2021 ◽  
Author(s):  
WenJing Pan ◽  
Chenchen Li ◽  
Haoyin Zhu ◽  
Fangfang Li ◽  
Tao Li ◽  
...  
Keyword(s):  
Practical Method ◽  
Reaction Conditions ◽  
Metal Free ◽  
Allyl Ethers ◽  
Aryl Ethers ◽  
Aryl Methyl ◽  
General Method

A general method for the demethylation, debenzylation, and deallylation of aryl ethers using HPPh2 and tBuOK is reported. The reaction features mild and metal-free reaction conditions, broad substrate scope, good...

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