Catalyst-Free Sulfonylation of 2-Methoxyphenols: Facile One-Pot Synthesis of (Arylsulfonyl)catechols in Aqueous Media

2017 ◽  
Vol 2017 (35) ◽  
pp. 5306-5314 ◽  
Author(s):  
Neha Taneja ◽  
Rama Krishna Peddinti
2020 ◽  
Vol 17 ◽  
Author(s):  
Visarapu Malathi ◽  
Pedavenkatagari Narayana Reddy ◽  
Pannala Padmaja

Abstract:: An efficient method has been developed for the synthesis of new pyrano[3,2-c] and pyrano[3,2-a]carbazole de-rivatives via a three component reaction of 4-hydroxycarbazole or 2-hydroxycarbazole, isocyanides, and dialkylacetylenedi-carboxylates. Noteworthy features of this protocol include mild reaction conditions, catalyst-free, high atom-economy and high yields.


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.


ChemInform ◽  
2010 ◽  
Vol 41 (32) ◽  
pp. no-no
Author(s):  
Latonglila Jamir ◽  
Abdur Rezzak Ali ◽  
Harisadhan Ghosh ◽  
Francis A. S. Chipem ◽  
Bhisma K. Patel

2014 ◽  
Vol 18 (5) ◽  
pp. 502-506 ◽  
Author(s):  
Shahrzad Javanshir ◽  
Allen Ohanian ◽  
Majid M. Heravi ◽  
M.R. Naimi-Jamal ◽  
Fatemeh F. Bamoharram

RSC Advances ◽  
2016 ◽  
Vol 6 (32) ◽  
pp. 26783-26790 ◽  
Author(s):  
Hamid Reza Safaei ◽  
Farbod Dehbozorgi

A rapid and efficient solvent-free one-pot synthesis of novel alkyl amino aryl furan tricarbonitrile derivatives is described under catalyst-free conditions.


2014 ◽  
Vol 55 (48) ◽  
pp. 6520-6525 ◽  
Author(s):  
Mahender Reddy Marri ◽  
Swamy Peraka ◽  
Arun Kumar Macharla ◽  
Naresh Mameda ◽  
Srujana Kodumuri ◽  
...  

ChemInform ◽  
2011 ◽  
Vol 42 (7) ◽  
pp. no-no
Author(s):  
Li Zhang ◽  
Zhenggen Zha ◽  
Zhenlei Zhang ◽  
Yunfeng Li ◽  
Zhiyong Wang

ChemInform ◽  
2007 ◽  
Vol 38 (41) ◽  
Author(s):  
Saeed Balalaie ◽  
Morteza Bararjanian ◽  
Masoumeh Sheikh-Ahmadi ◽  
Shohreh Hekmat ◽  
Peyman Salehi

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