A new method to access triazole-fused spiro-guanidines from the reaction of isothiocyanates tethered N-sulfonyl-1,2,3-triazoles and amines

2016 ◽  
Vol 3 (11) ◽  
pp. 1447-1451
Author(s):  
Hou-Lu Liu ◽  
Yu Jiang ◽  
Jian Hao ◽  
Xiang-Ying Tang ◽  
Min Shi
Keyword(s):  
Reaction Process ◽  
New Method ◽  
Tandem Reaction ◽  
Two Component

The reaction of isothiocyanate tethered N-sulfonyl-1,2,3-triazoles and amines afforded asymmetrical guanidines in fair to excellent yields through a two-component tandem reaction process.

Rhodium(iii)-catalyzed tandem reaction: efficient synthesis of dihydrobenzo thiadiazine 1-oxide derivatives

2019 ◽  
Vol 6 (9) ◽  
pp. 1458-1462 ◽  
Author(s):  
Yang Li ◽  
Chen-Fei Liu ◽  
Xin-Yang Liu ◽  
Yan-Jun Xu ◽  
Lin Dong
Keyword(s):  
Tandem Reaction ◽  
Efficient Synthesis ◽  
Highly Efficient ◽  
Two Component

A tandem annulation reaction triggered by rhodium(iii)-catalyzed C–H bond functionalizations has been well developed for highly efficient synthesis of dihydrobenzo thiadiazine 1-oxide derivatives from free NH-sulfoximine and two-component benzyl azides.

Visible-light-induced deboronative alkylarylation of acrylamides with organoboronic acids

2019 ◽  
Vol 17 (27) ◽  
pp. 6612-6619 ◽  
Author(s):  
Xuezhi Li ◽  
Man-Yi Han ◽  
Bin Wang ◽  
Lei Wang ◽  
Min Wang
Keyword(s):  
Visible Light ◽  
Boronic Acids ◽  
Reaction Process ◽  
Tandem Reaction ◽  
Organoboronic Acids

A visible-light-induced deboronative alkylarylation of acrylamides with boronic acids was developed via a tandem reaction process.

Fast construction of dianthraceno[a,e]pentalenes for OPV applications

2017 ◽  
Vol 4 (5) ◽  
pp. 711-716 ◽  
Author(s):  
Zhongbo Zhang ◽  
Haijun Fan ◽  
Xiaozhang Zhu
Keyword(s):  
Functional Group ◽  
New Method ◽  
Tandem Reaction ◽  
Palladium Catalyzed

A new method based on a palladium-catalyzed tandem reaction for the fast construction of a dianthraceno[a,e]pentalene (DAP) framework is developed, which gave a series of dianthraceno[a,e]pentalenes with good functional group tolerance, and it should be highlighted that five C–C bonds were formed in one reaction.

scholarly journals New Method of Determining CH3/Si Value of Two Component Mixtures of Methylchlorosilanes

1957 ◽  
Vol 60 (1) ◽  
pp. 81-84
Author(s):  
Fumio Hirata ◽  
Toshio Takiguchi ◽  
Yasuaki Nakaido
Keyword(s):  
New Method ◽  
Two Component

Phosphine catalyzed [3+2] cyclization/Michael addition of allenoate with CS2 to form 2-thineyl vinyl sulfide

2020 ◽  
Vol 56 (78) ◽  
pp. 11669-11672
Author(s):  
Weihong Fei ◽  
Ping Xu ◽  
Jie Hou ◽  
Weijun Yao
Keyword(s):  
Michael Addition ◽  
Tandem Reaction ◽  
Vinyl Sulfide ◽  
Two Component

We have developed a DPPE-catalyzed three molecular two component tandem reaction of γ-substituted allenoate and CS2 to construct 2-thineyl vinyl sulfide through phosphine catalyzed [3+2] cyclization followed by Michael addition.

scholarly journals Tandem reaction for the synthesis of bicyclic ortho-aminocarbonitrile derivatives using DMAPA as a cheap and efficient catalyst

2020 ◽  
Vol 2 (2) ◽  
pp. 145-151
Author(s):  
Lisha Wu ◽  
◽  
Shiqiang Yan ◽  
Yinta Li ◽  
◽  
...  
Keyword(s):  
Aromatic Aldehyde ◽  
Multicomponent Reaction ◽  
Reaction Times ◽  
Aromatic Aldehydes ◽  
Catalytic Amount ◽  
New Method ◽  
Tandem Reaction ◽  
One Pot ◽  
Efficient Catalyst ◽  
Simple Filtration

To develop a new method for the synthesis of bicyclic ortho-aminocarbonitrile derivatives. Reaction of aromatic aldehydes, cycloketones and malononitrile with catalytic amount of 3-(dimethylamino)- 1-propylamine (DMAPA) in ethanol via Knoevenagel-Michael cascades. The bicyclic ortho-aminocarbonitrile derivatives were obtained with good to excellent yields along with short reaction times. The universality, excellent yields, mild reaction and easy collection through simple filtration indicate the preparation of orthoaminocarbonitriles derivatives is an efficient and suitable protocol, which use one-pot multicomponent reaction of aromatic aldehyde, cycloketone, and 2 equiv. of malononitrile under the catalytic amount of DMAPA in ethanol.

Metal-free tandem reaction synthesis of spiro-cyclopropyl fused pyrazolin-5-one derivatives

2019 ◽  
Vol 6 (5) ◽  
pp. 664-668 ◽  
Author(s):  
Man Liu ◽  
Chen-Fei Liu ◽  
Jing Zhang ◽  
Yan-Jun Xu ◽  
Lin Dong
Keyword(s):  
Tandem Reaction ◽  
Reaction Synthesis ◽  
Acidic Environment ◽  
Sulfur Ylides ◽  
Metal Free ◽  
Highly Efficient ◽  
Two Component

A highly efficient cascade annulation approach was developed for the synthesis of novel spiro-cyclopropyl fused pyrazolin-5-ones from pyrazole-3-ketone substrates and two-component sulfur ylides in an acidic environment.

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