Highly regioselective synthesis of 7-oxo-7H-[1,3,4]thiadiazolo[3,2-a]pyrimidine-5-carboxylate derivatives under mild conditions

2019 ◽  
Vol 60 (21) ◽  
pp. 1399-1403
Author(s):  
Hongru Dong ◽  
Yuming Zhao
Keyword(s):  
Regioselective Synthesis ◽  
Mild Conditions

Iridium-catalyzed orthogonal and regioselective synthesis of triazole disulfides in aqueous media under mild conditions

2020 ◽  
Vol 22 (8) ◽  
pp. 2394-2398 ◽  
Author(s):  
Ming Li ◽  
Nan Zheng ◽  
Junhao Li ◽  
Yubin Zheng ◽  
Wangze Song
Keyword(s):  
Aqueous Media ◽  
Regioselective Synthesis ◽  
Biological Media ◽  
Mild Conditions ◽  
Catalyzed Reactions

Triazole disulfides were prepared in water or biological media under mild conditions by orthogonal and regioselective Ir-catalyzed reactions.

scholarly journals Direct Regioselective Synthesis of Tetrazolium Salts by Activation of Secondary Amides under Mild Conditions

2017 ◽  
Vol 19 (10) ◽  
pp. 2662-2665 ◽  
Author(s):  
Veronica Tona ◽  
Boris Maryasin ◽  
Aurélien de la Torre ◽  
Josefine Sprachmann ◽  
Leticia González ◽  
...  
Keyword(s):  
Regioselective Synthesis ◽  
Tetrazolium Salts ◽  
Mild Conditions ◽  
Secondary Amides

ChemInform Abstract: Metal Free ipso Iodination of Arylboronic Acids Using CTAB/I2in Aqueous Media: Green and Regioselective Synthesis of Aryliodides under Mild Conditions.

ChemInform ◽  
2015 ◽  
Vol 46 (35) ◽  
pp. no-no
Author(s):  
Rajesh H. Tale ◽  
Gopal K. Toradmal ◽  
Venkatesh B. Gopula ◽  
Atish H. Rodge ◽  
Rajendra P. Pawar ◽  
...  
Keyword(s):  
Aqueous Media ◽  
Regioselective Synthesis ◽  
Metal Free ◽  
Arylboronic Acids ◽  
Mild Conditions

Base-Induced Highly Regioselective Synthesis of N2-Substituted 1,2,3-Triazoles under Mild Conditions in Air

2021 ◽  
Author(s):  
Jian Ji ◽  
Cong Guan ◽  
Qinghua Wei ◽  
Xuwen Chen ◽  
Yun Zhao ◽  
...  
Keyword(s):  
Regioselective Synthesis ◽  
Mild Conditions

scholarly journals Copper–phenanthroline catalysts for regioselective synthesis of pyrrolo[3′,4′:3,4]pyrrolo[1,2-a]furoquinolines/phenanthrolines and of pyrrolo[1,2-a]phenanthrolines under mild conditions

2014 ◽  
Vol 10 ◽  
pp. 692-700 ◽  
Author(s):  
Rupankar Paira ◽  
Tarique Anwar ◽  
Maitreyee Banerjee ◽  
Yogesh P Bharitkar ◽  
Shyamal Mondal ◽  
...  
Keyword(s):  
Catalytic System ◽  
Cycloaddition Reaction ◽  
Regioselective Synthesis ◽  
Azomethine Ylides ◽  
Dipolar Cycloaddition ◽  
General Applicability ◽  
Mild Conditions ◽  
Stabilized Azomethine Ylides ◽  
High Yields

A new series of pyrrolo[3′,4′:3,4]pyrrolo[1,2-a]furoquinolines/phenanthrolines and pyrrolo[1,2-a]phenanthrolines were efficiently built up from an 8-hydroxyquinoline derivative or phenanthroline via 1,3-dipolar cycloaddition reaction involving non-stabilized azomethine ylides, generated in situ from the parent furo[3,2-h]quinoliniums/phenanthroliums, in presence of a copper(II) chloride–phenanthroline catalytic system. The methodology combines general applicability with high yields.

scholarly journals Regioselective synthesis of 7,8-dihydroimidazo[5,1-c][1,2,4]triazine-3,6(2H,4H)-dione derivatives: A new drug-like heterocyclic scaffold

2012 ◽  
Vol 8 ◽  
pp. 1584-1593 ◽  
Author(s):  
Nikolay T Tzvetkov ◽  
Harald Euler ◽  
Christa E Müller
Keyword(s):  
Structural Variation ◽  
Regioselective Synthesis ◽  
X Ray ◽  
X Ray Crystallography ◽  
Mild Conditions ◽  
New Drug ◽  
Synthetic Strategy ◽  
Subsequent Cyclization

Dihydroimidazo[5,1-c][1,2,4]triazine-3,6(2H,4H)-dione derivatives were prepared by successive N3- and N1-alkylation of hydantoins, followed by regioselective thionation and subsequent cyclization under mild conditions. In a final alkylation step a further substituent may be introduced. The synthetic strategy allows broad structural variation of this new drug-like heterobicyclic scaffold. In addition to extensive NMR and MS analyses, the structure of one derivative was confirmed by X-ray crystallography.

Metal free ipso iodination0 of arylboronic acids using CTAB/I2 in aqueous media: green and regioselective synthesis of aryliodides under mild conditions

2015 ◽  
Vol 56 (21) ◽  
pp. 2699-2703 ◽  
Author(s):  
Rajesh H. Tale ◽  
Gopal K. Toradmal ◽  
Venkatesh B. Gopula ◽  
Atish H. Rodge ◽  
Rajendra P. Pawar ◽  
...  
Keyword(s):  
Aqueous Media ◽  
Regioselective Synthesis ◽  
Metal Free ◽  
Arylboronic Acids ◽  
Mild Conditions
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