Iodinane- and Metal-Free Synthesis ofN-Cyano Sulfilimines:  Novel and Easy Access ofNH-Sulfoximines

2007 ◽  
Vol 9 (19) ◽  
pp. 3809-3811 ◽  
Author(s):  
Olga García Mancheño ◽  
Olivia Bistri ◽  
Carsten Bolm
Keyword(s):  
Easy Access ◽  
Metal Free

scholarly journals Easy Access to Allylic Sulfones Through Transition-Metal-Free Hydrosulfonylation Of Allenes

2021 ◽  
Author(s):  
Lucas Pagès ◽  
Sébastien Lemouzy ◽  
Marc Taillefer ◽  
Florian Monnier
Keyword(s):  
Transition Metal ◽  
Easy Access ◽  
Metal Free

Metal-free oxidative acylation/cyclization of N-methacryloyl-2-phenylbenzoimidazole with aryl aldehydes: an easy access to benzimidazo[2,1-a]isoquinolin-6(5H)-ones

2019 ◽  
Vol 17 (44) ◽  
pp. 9627-9630 ◽  
Author(s):  
Ramesh Boora ◽  
G. Ravi kumar ◽  
B. V. Subba Reddy
Keyword(s):  
Free Radical ◽  
Radical Cyclization ◽  
Easy Access ◽  
Metal Free ◽  
Aryl Aldehydes

A metal-free radical cyclization strategy has been developed for the synthesis of fused benzimidazo[2,1-a]isoquinolin-6(5H)-one derivatives using 70% tert-butylhydroperoxide in water (TBHP).

Metal-Free One-Pot Protocol for the Preparation of Unexpected Carbazole Derivative in Water: Easy Access to Pyrimidocarbazole and Pyridocarbazolone Derivatives

Synlett ◽  
2014 ◽  
Vol 25 (15) ◽  
pp. 2115-2120 ◽  
Author(s):  
Sampak Samanta ◽  
Soumen Biswas ◽  
Debashis Majee ◽  
Anuradha Dagar
Keyword(s):  
Easy Access ◽  
One Pot ◽  
Carbazole Derivative ◽  
Metal Free

An Easy Access to Sulfur Derivatives of 6,8-Dioxabicyclo[3.2.1]octanes, Naturally Abundant Scaffolds

Synthesis ◽  
2018 ◽  
Vol 50 (13) ◽  
pp. 2624-2630 ◽  
Author(s):  
Elena Schmidt ◽  
Ivan Bidusenko ◽  
Igor Ushakov ◽  
Nadezhda Protsuk ◽  
Boris Trofimov
Keyword(s):  
Natural Products ◽  
Free Radical ◽  
Transition Metal ◽  
Uv Irradiation ◽  
Radical Reaction ◽  
Easy Access ◽  
Free Radical Reaction ◽  
One Pot ◽  
Metal Free ◽  
Derivatives Of

Sulfur derivatives of 6,8-dioxabicyclo[3.2.1]octanes related to a number of natural products have been synthesized by the click hydrothiolation (AIBN or UV irradiation) of 7-methylene-6,8-dioxabicy­clo[3.2.1]octanes, assembled from acetylene and ketones in a one-pot transition-metal-free synthetic operation. An unusual feature of this free-radical reaction is that it is accelerated in the presence of bases due to involvement of the latter in a competition between the thiol addition and proton-catalyzed isomerization of the starting bicyclooctanes.

Easy access to benzylic esters directly from alkyl benzenes under metal-free conditions

2013 ◽  
Vol 49 (29) ◽  
pp. 3031 ◽  
Author(s):  
Ganesh Majji ◽  
Srimanta Guin ◽  
Anupal Gogoi ◽  
Saroj Kumar Rout ◽  
Bhisma K. Patel
Keyword(s):  
Easy Access ◽  
Metal Free ◽  
Alkyl Benzenes

scholarly journals Easy Access To Allylic Sulfones Through Transition Metal-Free Hydrosulfonylation Of Allenes

2021 ◽  
Author(s):  
Lucas Pages ◽  
Sebastien Lemouzy ◽  
Marc Taillefer ◽  
Florian Monnier
Keyword(s):  
Transition Metal ◽  
Good Yield ◽  
Easy Access ◽  
Bronsted Acid ◽  
Brønsted Acid ◽  
Metal Free ◽  
Brönsted Acid ◽  
One Step

A Brønsted acid-mediated addition of (hetero)aryl and (cyclo)alkyl sodium sulfinates to <i>N</i>-allenyl derivatives is described under very smooth conditions. This reaction provided a practical and efficient protocol for the synthesis of allylic sulfones in an atom- and step-economic fashion. In addition, an one-step double hydrosulfonylation has also been demonstrated, affording the corresponding 1,3-disulfone in to good yield.<br>

Easy access to secondary and tertiary alcohols via metal-free and light mediated radical carbonyl allylation

2021 ◽  
Vol 57 (82) ◽  
pp. 10783-10786
Author(s):  
Benjamin Rui Peng Yip ◽  
Kumar Bhaskar Pal ◽  
Junjie Desmond Lin ◽  
Yuan Xu ◽  
Mrinmoy Das ◽  
...  
Keyword(s):  
Easy Access ◽  
Metal Free ◽  
Tertiary Alcohols ◽  
Aryl Ketones ◽  
Carbonyl Allylation

An organo-photocatalyst catalyzed allylation of aryl ketones and aldehydes using readily available unactivated allylic substrates has been reported.

A Convenient and Concise Metal-Free Approach to Functionalized Bicyclic Pyrimidinones from Oxazine-2,6-diones

Synthesis ◽  
2018 ◽  
Vol 50 (10) ◽  
pp. 2087-2093 ◽  
Author(s):  
Ashwini Shirsale ◽  
Yogesh Patil ◽  
Girish Rawal ◽  
Jagadish Pabba ◽  
Guillaume Berthon ◽  
...  
Keyword(s):  
Building Blocks ◽  
Easy Access ◽  
Metal Free

The synthesis of previously unreported pyrazolo-pyrimidinones and isoxazolo-pyrimidinones are achieved via metal-free coupling of oxazine-2,6-diones with pyrazolidinone and isoxazolidinone, respectively. The synthesis provides easy access to a variety of novel 2-dimensional building blocks that can be derivatized to generate a range of drug- and agro-like molecules.

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