One-pot synthesis of 4-ethyl 2,3-dimethyl 1-(5-aryl-1,3,4-thiadiazol-2-yl)-5-oxo-2,5-dihydro-1H-pyrrole-2,3,4-tricarboxylate derivatives via intramolecular Wittig reaction

2020 ◽  
Vol 44 (7-8) ◽  
pp. 403-409
Author(s):  
Samin Iravani ◽  
Abbas Ali Esmaeili

A facile one-pot synthesis of highly functionalized dialkyl 1-(5-aryl-1,3,4-thiadiazol-2-yl)-4-ethoxy-5-oxo-2,5-dihydro-1 H-pyrrole-2,3-dicarboxylate derivatives via the reaction between acetylenic esters, triphenylphosphine, and ethyl 2-[(5-aryl-1,3,4-thiadiazol-2-yl)amino]-2-oxoacetate is developed. The structure of the products is confirmed by spectroscopic methods.

2017 ◽  
Vol 22 (1) ◽  
pp. 37-46 ◽  
Author(s):  
Tahere Hosseyni Largani ◽  
Gholamhasan Imanzadeh ◽  
Nader Noroozi Pesyan ◽  
Ertan Şahin ◽  
Amir Nasser Shamkhali ◽  
...  

RSC Advances ◽  
2014 ◽  
Vol 4 (75) ◽  
pp. 39667 ◽  
Author(s):  
Ningaraddi S. Belavagi ◽  
Narahari Deshapande ◽  
Manjunath G. Sunagar ◽  
Imtiyaz Ahmed M. Khazi

2016 ◽  
Vol 57 (16) ◽  
pp. 1733-1735 ◽  
Author(s):  
Issa Yavari ◽  
Alaleh Malekafzali ◽  
Reza Eivazzadeh-Keihan ◽  
Stavroula Skoulika ◽  
Rahman Alivaisi

Synlett ◽  
2021 ◽  
Author(s):  
Long Zhao ◽  
Mao-Lin Yang ◽  
Mei Sun ◽  
Ming-Wu Ding

A new one-pot Synthesis of 3-(1,2,3,4-tetrahydroisoquinolin-1-yl)- isoquinolin-1(2H)-ones by DEAD-promoted oxidative Ugi/Wittig reaction was developed. The sequential reactions of (2-carboxybenzyl)triphenylphosphonium salts, isocyanides and N-aryl-1,2,3,4-tetrahydroisoquinolines produced 3-(1,2,3,4-tetrahydroisoquinolin-1-yl)- isoquinolin-1(2H)-ones in moderate to good overall yields in the presence of DEAD and Et3N.


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