Solvent-Controlled Two-Step One-Pot Syntheses of α-X (X= Br or Cl) Enamino ketones/ esters and 3-(2, 5-dioxopyrrolidin-1-yl)acrylate by Terminal Carbonyl Alkynes

Author(s):  
Xiao Yun Chen ◽  
Shuxia Yuan ◽  
Yan Chen ◽  
Chenyang Sun ◽  
Yaonan Tang ◽  
...  

A new two-step one-pot aminobromination/chlorination of carbonyl alkynes has been achieved via a Michael addition of aliphatic secondary and subsequent β-bromination/chlorination of above enamines to afford various α-X (X =...


2014 ◽  
Vol 50 (50) ◽  
pp. 6574-6577 ◽  
Author(s):  
Sam E. R. Auty ◽  
Oliver Andrén ◽  
Michael Malkoch ◽  
Steven P. Rannard

We present the first xanthate surface functional dendrimers which undergo rapid one-pot deprotection to thiols and subsequent acrylate Michael addition .



Synlett ◽  
2018 ◽  
Vol 29 (12) ◽  
pp. 1589-1592 ◽  
Author(s):  
Abolfazl Olyaei ◽  
Mahnaz Saraei ◽  
Reyhaneh Khoeiniha

A high-yielding cyclocondensation of 4-hydroxycoumarin, phenylglyoxal monohydrate, and heteroarylamines proceeds without catalysis, which gives novel functionalized furo[3,2-c]coumarins and heteroarylamino alkylation of coumarin products in acetonitrile under reflux, is reported for the first time. This tandem process involves sequentially an aldol condensation, Michael addition, a ring closure, and dehydration reaction.



2009 ◽  
Vol 351 (1-2) ◽  
pp. 141-146 ◽  
Author(s):  
Yun Shi ◽  
Jing Huang ◽  
Yan-Fang Yang ◽  
Lu-Yong Wu ◽  
Yan-Ning Niu ◽  
...  


Author(s):  
Mohammad Bagher Teimouri ◽  
Zahra Mokhtare ◽  
Hamid Reza Khavasi

Three new chemical bonds and three stereogenic centres and one heterocyclic ring were assembled stereoselectively in a convenient high atom-economy one-pot operation.



Synlett ◽  
2007 ◽  
Vol 2007 (19) ◽  
pp. 2971-2974 ◽  
Author(s):  
Orazio Attanasi ◽  
Gianfranco Favi ◽  
Paolino Filippone ◽  
Amalija Golobič ◽  
Francesca Perrulli ◽  
...  


ChemInform ◽  
2012 ◽  
Vol 43 (7) ◽  
pp. no-no
Author(s):  
Xiaoyu Wu ◽  
Xiaoyang Dai ◽  
Huihui Fang ◽  
Linlin Nie ◽  
Jie Chen ◽  
...  
Keyword(s):  


Synlett ◽  
2017 ◽  
Vol 28 (10) ◽  
pp. 1183-1186 ◽  
Author(s):  
Nobuhiro Obara ◽  
Takeshi Watanabe ◽  
Tomohiro Asakawa ◽  
Toshiyuki Kan ◽  
Takao Tanaka

A convenient method for synthesizing 3-amino-1,5-benzodiazepine-2-one via the Michael addition reaction of o-phenylenediamine with dehydroalanine ester derivatives, followed by cyclization, was developed. This simple method was used to obtain a variety of N-substituted 3-amino-1,5-benzodiazepine-2-ones in one pot with good yields.



2014 ◽  
Vol 2014 (12) ◽  
pp. 2565-2575 ◽  
Author(s):  
Santhosh Kumar Chittimalla ◽  
Chennakesavulu Bandi ◽  
Sireesha Putturu ◽  
Rajesh Kuppusamy ◽  
Kevin Christopher Boellaard ◽  
...  


2011 ◽  
Vol 50 (40) ◽  
pp. 9382-9385 ◽  
Author(s):  
Silvia Sternativo ◽  
Antonella Calandriello ◽  
Ferdinando Costantino ◽  
Lorenzo Testaferri ◽  
Marcello Tiecco ◽  
...  


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