Catalyst-free regioselective synthesis of benzopyran-annulated thiopyrano[2,3-b]thiochromen-5-(4H)-one derivatives by domino-Knoevenagel-hetero-Diels–Alder reaction of terminal alkynes with 4-hydroxy dithiocoumarin in aqueous medium

2010 ◽  
Vol 51 (17) ◽  
pp. 2297-2300 ◽  
Author(s):  
K.C. Majumdar ◽  
Abu Taher ◽  
Sudipta Ponra
Keyword(s):  
Aqueous Medium ◽  
Alder Reaction ◽  
Diels Alder ◽  
Regioselective Synthesis ◽  
Terminal Alkynes ◽  
Catalyst Free ◽  
Diels Alder Reaction

ChemInform Abstract: A New Domino Knoevenagel-hetero-Diels-Alder Reaction: An Efficient Catalyst-Free Synthesis of Novel Thiochromone-Annulated Thiopyranocoumarin Derivatives in Aqueous Medium.

ChemInform ◽  
2011 ◽  
Vol 42 (8) ◽  
pp. no-no
Author(s):  
Firouz Matloubi Moghaddam ◽  
Mostafa Kiamehr ◽  
Mohammad Reza Khodabakhshi ◽  
Zohreh Mirjafary ◽  
Shaghayegh Fathi ◽  
...  
Keyword(s):  
Aqueous Medium ◽  
Alder Reaction ◽  
Diels Alder ◽  
Efficient Catalyst ◽  
Catalyst Free ◽  
Diels Alder Reaction

A new domino Knoevenagel-hetero-Diels–Alder reaction: an efficient catalyst-free synthesis of novel thiochromone-annulated thiopyranocoumarin derivatives in aqueous medium

Tetrahedron ◽  
2010 ◽  
Vol 66 (45) ◽  
pp. 8615-8622 ◽  
Author(s):  
Firouz Matloubi Moghaddam ◽  
Mostafa Kiamehr ◽  
Mohammad Reza Khodabakhshi ◽  
Zohreh Mirjafary ◽  
Shaghayegh Fathi ◽  
...  
Keyword(s):  
Aqueous Medium ◽  
Alder Reaction ◽  
Diels Alder ◽  
Efficient Catalyst ◽  
Catalyst Free ◽  
Diels Alder Reaction

ChemInform Abstract: Regioselective Synthesis of Polysubstituted Pyridines via Hetero-Diels-Alder Reaction of Isotellurazoles with Acetylenic Dienophiles.

ChemInform ◽  
2010 ◽  
Vol 41 (11) ◽  
pp. no-no
Author(s):  
Kazuaki Shimada ◽  
Yukichi Takata ◽  
Yu Osaki ◽  
Akiko Moro-oka ◽  
Hisashi Kogawa ◽  
...  
Keyword(s):  
Alder Reaction ◽  
Diels Alder ◽  
Regioselective Synthesis ◽  
Diels Alder Reaction

Yb(OTf)3 catalysed regioselective synthesis of unusual di- and tri- substituted 3,4-dihydrothiochromeno[3,2-e][1,3]thiazin-5(2H)-one derivatives through a pseudo four-component hetero-Diels–Alder reaction

RSC Advances ◽  
2015 ◽  
Vol 5 (59) ◽  
pp. 48104-48111 ◽  
Author(s):  
Karuna Mahato ◽  
Prasanta Ray Bagdi ◽  
Abu T. Khan
Keyword(s):  
Alder Reaction ◽  
Diels Alder ◽  
Regioselective Synthesis ◽  
Ytterbium Triflate ◽  
Diels Alder Reaction

An efficient and facile regioselective synthesis of di- and tri-substituted 3,4-dihydrothiochromeno[3,2-e][1,3]thiazin-5(2H)-one derivatives was achieved through an ytterbium triflate catalysed pseudo four component hetero-Diels–Alder reaction.

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