Synthesis of 1,2,4-triazole-3-selenones via three-component reaction between benzohydrazide, potassium selenocyanate and acyl chlorides under solvent-free conditions

2017 ◽  
Vol 41 (8) ◽  
pp. 455-456 ◽  
Author(s):  
Rahele Zhiani
Keyword(s):  
Ambient Temperature ◽  
Solvent Free ◽  
Efficient Synthesis ◽  
One Pot ◽  
Acyl Chlorides ◽  
Solvent Free Conditions ◽  
Three Component Reaction ◽  
One Pot Condensation

A green and efficient synthesis of 1,2,4-triazole-3-selenones has been achieved via a three-component, one-pot condensation of benzohydrazide, potassium selenocyanate and acyl chlorides under solvent-free conditions at ambient temperature with good yields.

Synthesis of 4-selenylidene-4H,5H-chromeno[3,4-e][1,3]oxazin-5-one

2017 ◽  
Vol 41 (8) ◽  
pp. 452-454 ◽  
Author(s):  
Rahele Zhiani
Keyword(s):  
Ambient Temperature ◽  
Solvent Free ◽  
Efficient Synthesis ◽  
One Pot ◽  
Acyl Chlorides ◽  
Solvent Free Conditions ◽  
One Pot Condensation

A green and efficient synthesis of [1,3]oxazines has been achieved via a three-component, one-pot condensation of 4-hydroxycoumarin, potassium selenocyanate and acyl chlorides in the presence of N-methylimidazole under solvent-free conditions at ambient temperature.

scholarly journals Efficient Synthesis of 1-Amidoalkyl-2-Naphthols by One-Pot, Three-Component Reaction under Solvent-Free Conditions

2013 ◽  
Vol 2013 ◽  
pp. 1-5 ◽  
Author(s):  
Zahed Karimi-Jaberi ◽  
Marziyeh Jokar ◽  
S. Zoleykha Abbasi
Keyword(s):  
Trichloroacetic Acid ◽  
Reaction Times ◽  
Solvent Free ◽  
Efficient Synthesis ◽  
One Pot ◽  
Solvent Free Conditions ◽  
Three Component Reaction ◽  
One Pot Condensation ◽  
High Yields ◽  
Free Media

Two efficient and direct procedures have been developed for the preparation of 1-amidoalkyl-2-naphthols by a one-pot condensation of aldehydes, 2-naphthol, and amides in the presence of trichloroacetic acid or cobalt (II) chloride as catalyst. The reactions were carried out under solvent-free media. High yields, short reaction times, easy workup of the catalyst are advantages of these procedures.

scholarly journals Zr(HSO4)4: An Efficient Catalyst for the Synthesis of 3-(2'- Benzothiazolyl)-2,3-dihydroquinazolin- 4(1H)-ones

2012 ◽  
Vol 9 (2) ◽  
pp. 739-743 ◽  
Author(s):  
Liqiang Wu
Keyword(s):  
Solvent Free ◽  
Isatoic Anhydride ◽  
Efficient Synthesis ◽  
One Pot ◽  
Efficient Catalyst ◽  
Solvent Free Conditions ◽  
One Pot Condensation ◽  
The One

A simple and efficient synthesis of 3-(2'-benzothiazolyl)-2,3-dihydro quinazolin-4(1H)- ones has been accomplished by the one-pot condensation of isatoic anhydride, aldehyde and 2-aminobenzothiazole under solvent-free conditions in the presence of Zr(HSO4)4.

scholarly journals One-pot synthesis of 3,4-dihydropyrimidin-2(1H)-ones catalyzed by SO3H@imineZCMNPs as a novel, efficient and reusable acidic nanocatalyst under solvent-free conditions

RSC Advances ◽  
2018 ◽  
Vol 8 (70) ◽  
pp. 40243-40251 ◽  
Author(s):  
Esmayeel Abbaspour-Gilandeh ◽  
Asieh Yahyazadeh ◽  
Mehraneh Aghaei-Hashjin
Keyword(s):  
Solvent Free ◽  
Magnetic Nanocatalyst ◽  
One Pot ◽  
Environment Friendly ◽  
Novel Environment ◽  
One Pot Synthesis ◽  
Solvent Free Conditions ◽  
Three Component Reaction

The synthesis of 3,4-dihydropyrimidin-2(1H)-one derivatives was accomplished via a three-component reaction in the presence of SO3H@imineZCMNPs as a novel, environment friendly, and reusable heterogeneous magnetic nanocatalyst under solvent-free conditions at 90 °C.

Synthesis of 1H-Chromeno[2,3-d]Pyrimidine-5-Carboxamides under Solvent-Free Conditions at Ambient Temperature

2017 ◽  
Vol 41 (2) ◽  
pp. 85-87 ◽  
Author(s):  
Ghodsyeh Keykha ◽  
Mohammad R. Hosseini-Tabatabaei ◽  
Alireza Hassanabadi
Keyword(s):  
Ambient Temperature ◽  
Present Method ◽  
Barbituric Acid ◽  
Condensation Product ◽  
Solvent Free ◽  
One Pot ◽  
Short Reaction Time ◽  
Alkyl Isocyanide ◽  
Solvent Free Conditions ◽  
Work Up

Good yields of six 1H-chromeno[2,3-d]pyrimidine-5-carboxamides were obtained via the two-stage, one-pot reaction of an alkyl isocyanide with the initially formed condensation product of 1,3-dimethyl barbituric acid and a salicylaldehyde under solvent-free conditions at ambient temperature. This procedure has a number of advantages, such as short reaction time and easy work-up. Also, the present method does not involve any hazardous organic solvent.

Efficient Synthesis of Urea Derivatives via a Sequential One-Pot Nucleophilic Addition/Ugi Five-Component Reaction Under Solvent-Free Conditions

2012 ◽  
Vol 42 (14) ◽  
pp. 2110-2120 ◽  
Author(s):  
Javad Azizian ◽  
Khadijeh Yadollahzadeh ◽  
Hasan Tahermansouri ◽  
Davood Chobfrosh Khoei ◽  
Akram Sadat Delbari
Keyword(s):  
Nucleophilic Addition ◽  
Solvent Free ◽  
Efficient Synthesis ◽  
One Pot ◽  
Urea Derivatives ◽  
Solvent Free Conditions
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