Phosphomolybdic acid-catalyzed efficient one-pot three-component aza-Diels–Alder reactions under solvent-free conditions: a facile synthesis of trans-fused pyrano- and furanotetrahydroquinolines

2006 ◽  
Vol 47 (26) ◽  
pp. 4409-4413 ◽  
Author(s):  
K. Nagaiah ◽  
D. Sreenu ◽  
R. Srinivasa Rao ◽  
G. Vashishta ◽  
J.S. Yadav
Keyword(s):  
Phosphomolybdic Acid ◽  
Diels Alder ◽  
Solvent Free ◽  
Facile Synthesis ◽  
One Pot ◽  
Solvent Free Conditions ◽  
Acid Catalyzed

Mandelic acid catalyzed one-pot three-component synthesis of α-aminonitriles and α-aminophosphonates under solvent-free conditions at room temperature

2020 ◽  
Vol 50 (10) ◽  
pp. 1545-1560 ◽  
Author(s):  
Gurpreet Kaur ◽  
Mussarat Shamim ◽  
Vaishali Bhardwaj ◽  
Vivek Kumar Gupta ◽  
Bubun Banerjee
Keyword(s):  
Mandelic Acid ◽  
Room Temperature ◽  
Solvent Free ◽  
One Pot ◽  
Solvent Free Conditions ◽  
Acid Catalyzed

Lanthanum(III) Nitrate Hexahydrate of p-Toluenesulfonic Acid Catalyzed One-Pot Synthesis of 4(3H)-Quinazolinones under Solvent-Free Conditions.

ChemInform ◽  
2006 ◽  
Vol 37 (40) ◽  
Author(s):  
Manchala Narasimhulu ◽  
Kondempudi Chinni Mahesh ◽  
Thummalapally Srikanth Reddy ◽  
Karuturi Rajesh ◽  
Yenamandra Venkateswarlu
Keyword(s):  
Solvent Free ◽  
Nitrate Hexahydrate ◽  
One Pot ◽  
One Pot Synthesis ◽  
Toluenesulfonic Acid ◽  
Solvent Free Conditions ◽  
Acid Catalyzed

Gram-Scale Synthesis of β-Sulfonyl Styrenes

Synthesis ◽  
2018 ◽  
Vol 50 (23) ◽  
pp. 4651-4658 ◽  
Author(s):  
Meng-Yang Chang ◽  
Yan-Shin Wu ◽  
Yu-Ting Hsiao
Keyword(s):  
Acetic Anhydride ◽  
Polyphosphoric Acid ◽  
Solvent Free ◽  
One Pot ◽  
Solvent Free Conditions ◽  
Acid Catalyzed

A simple and gram-scale synthesis of β-sulfonyl styrenes has been developed starting from one-pot PPA (polyphosphoric acid)-catalyzed 1,1-diacetoxylation of arylacetaldehydes (ArCH2CHO) with acetic anhydride (Ac2O) followed by deacetoxylative sulfonylation of the resulting 1,1-diacetate intermediate with sodium sulfinates (RSO2Na) in good yields under solvent-free conditions.

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