Molecular iodine catalysed domino cyclization in aqueous medium: a simple and efficient synthetic route to 1,4-dihydropyridazines

RSC Advances ◽  
2015 ◽  
Vol 5 (65) ◽  
pp. 52355-52360 ◽  
Author(s):  
I. R. Siddiqui ◽  
Rahila Rahila ◽  
Pragati Rai ◽  
Hozeyfa Sagir ◽  
Malik A. Waseem
Keyword(s):  
Aqueous Medium ◽  
Molecular Iodine ◽  
Synthetic Route ◽  
Green Catalyst

An efficient protocol has been developed for the synthesis of dihydropyridazines using molecular iodine as green catalyst.

ChemInform Abstract: Molecular Iodine Catalyzed Domino Cyclization in Aqueous Medium: A Simple and Efficient Synthetic Route to 1,4-Dihydropyridazines.

ChemInform ◽  
2015 ◽  
Vol 46 (43) ◽  
pp. no-no
Author(s):  
I. R. Siddiqui ◽  
Rahila Rahila ◽  
Pragati Rai ◽  
Hozeyfa Sagir ◽  
Malik A. Waseem
Keyword(s):  
Aqueous Medium ◽  
Molecular Iodine ◽  
Synthetic Route

Reaction of Coumarin Derivatives with Nucleophiles in Aqueous Medium

2008 ◽  
Vol 63 (1) ◽  
pp. 71-76 ◽  
Author(s):  
Mazaahir Kidwai ◽  
Shweta Rastogi ◽  
Keyword(s):  
Microwave Irradiation ◽  
Aqueous Medium ◽  
Reaction Times ◽  
Parallel Synthesis ◽  
Synthetic Approach ◽  
Coumarin Derivatives ◽  
Green Catalyst ◽  
Unsaturated Ketones ◽  
Water As Solvent

A series of heterocycles was synthesized by the reaction of α,β -unsaturated ketones of benzopyrans or coumarins with various nucleophiles in aqueous medium bearing two points of diversity. Compared to an identical library generated by conventional parallel synthesis, a microwaveassisted procedure dramatically decreased reaction times from hours to minutes, and yields of products and intermediates were improved remarkably. This synthetic approach is ecofriendly in nature which features water as solvent, microwave irradiation, and usage of a “green” catalyst (K2CO3).

Fulvic Acid: An Efficient and Green Catalyst for the One-pot Four-component Domino Synthesis of Benzo[a]phenazine Annulated Heterocycles in Aqueous Medium

2020 ◽  
Vol 52 (1) ◽  
pp. 48-55 ◽  
Author(s):  
Afshin Yazdani-Elah-Abadi ◽  
Maliheh Razeghi ◽  
Nasim Shams ◽  
Mehrnoush Kangani ◽  
Razieh Mohebat
Keyword(s):  
Fulvic Acid ◽  
Aqueous Medium ◽  
One Pot ◽  
Green Catalyst ◽  
The One

Synthesis of (E)-β-iodo vinylsulfones via iodine-promoted iodosulfonylation of alkynes with sodium sulfinates in an aqueous medium at room temperature

2017 ◽  
Vol 19 (5) ◽  
pp. 1255-1258 ◽  
Author(s):  
Yadong Sun ◽  
Ablimit Abdukader ◽  
Dong Lu ◽  
Haiyan Zhang ◽  
Chenjiang Liu
Keyword(s):  
Aqueous Medium ◽  
Room Temperature ◽  
Molecular Iodine

An efficient and facile molecular iodine-promoted method for the synthesis of (E)-β-iodo vinylsulfones with high regio- and stereoselectivity using water as the solvent at room temperature is presented.

Photoinitiated Synthesis of Sulfides in Water

2016 ◽  
Vol 69 (8) ◽  
pp. 919 ◽  
Author(s):  
Sergio A. Rodriguez ◽  
Leandro D. Mena ◽  
Maria T. Baumgartner
Keyword(s):  
Aqueous Medium ◽  
Synthetic Route ◽  
Water As Solvent ◽  
Photoinduced Reaction ◽  
Aryl Sulfides

Herein, we report a synthetic route to obtain aryl sulfides using inexpensive and non-toxic reactants and water as solvent, that avoids the use of catalysts or heating. The photoinduced reaction between soluble substrates and a series of thiols in alkaline aqueous medium produces the corresponding sulfides in moderate to good yields.

Iodine promoted iodosulfonylation of alkynes with sulfonyl hydrazides in an aqueous medium: highly stereoselective synthesis of (E)-β-iodo vinylsulfones

2018 ◽  
Vol 42 (11) ◽  
pp. 8752-8755 ◽  
Author(s):  
Yunlei Hou ◽  
Liangyu Zhu ◽  
Hao Hu ◽  
Shaowei Chen ◽  
Zefei Li ◽  
...  
Keyword(s):  
Aqueous Medium ◽  
Stereoselective Synthesis ◽  
Molecular Iodine

An efficient, molecular iodine-promoted MCR of alkynes and sulfonyl hydrazide for the synthesis of (E)-β-iodo vinylsulfone derivatives has been developed.

Sign in / Sign up

Export Citation Format

Share Document