One-Step Synthesis of Tetrazolo[1,5-a]pyrimidines by Cyclization Reaction of Dihydropyrimidine-2-thiones with Sodium Azide

Heterocycles ◽  
2011 ◽  
Vol 83 (12) ◽  
pp. 2811 ◽  
Author(s):  
Xi-Cun Wang ◽  
Ying Wei ◽  
Yu-Xia Da ◽  
Zhang Zhang ◽  
Zheng-Jun Quan
Keyword(s):  
Sodium Azide ◽  
Cyclization Reaction ◽  
One Step

ChemInform Abstract: One-Step Synthesis of Tetrazolo[1,5-a]pyrimidines by Cyclization Reaction of Dihydropyrimidine-2-thiones with Sodium Azide.

ChemInform ◽  
2012 ◽  
Vol 43 (15) ◽  
pp. no-no
Author(s):  
Xi-Cun Wang ◽  
Ying Wei ◽  
Yu-Xia Da ◽  
Zhang Zhang ◽  
Zheng-Jun Quan
Keyword(s):  
Sodium Azide ◽  
Cyclization Reaction ◽  
One Step

Rapid construction of complex tetracyclic frameworks via a gold(i)-catalyzed tandem 1,2-acyloxy migration/[3 + 2] cycloaddition/Friedel–Crafts type cyclization reaction of linear enynyl esters

2017 ◽  
Vol 4 (11) ◽  
pp. 2109-2113 ◽  
Author(s):  
Haiyu Sun ◽  
Shiyan Xu ◽  
Zhimin Xing ◽  
Lin Liu ◽  
Shangbiao Feng ◽  
...  
Keyword(s):  
Cyclization Reaction ◽  
Quaternary Centers ◽  
Rapid Construction ◽  
One Step

Magic “Au”: 3 rings and 2–3 quaternary centers were constructed in one step!

Obtaining the Nanostructured Nitride Composition TiN-BN Powder by the Self-Propagating High-Temperature Synthesis from the Azide KBF4-NaN3-Na2TiF6 and "NH4BF4-NaN3-Na2TiF6 Systems

2014 ◽  
Vol 698 ◽  
pp. 507-512
Author(s):  
Irina Kerson ◽  
Ljudmila Shiganova
Keyword(s):  
High Temperature ◽  
Boron Nitride ◽  
Sodium Azide ◽  
Composite Powder ◽  
The Self ◽  
Nanosized Powder ◽  
Temperature Synthesis ◽  
High Temperature Synthesis ◽  
Halide System ◽  
One Step

This paper presents the results of a study on the preparation of nanostructured nitride composition TiN-BN in the boron halide - sodium azide - titanium halide system by the azide SHS technology. SHS-Az technology makes it possible to produce powders having the desired properties, only in one step, without blending separately prepared powders of titanium nitride and boron nitride, and to obtain the final product in the form of micro-and nanosized powder nitride compositions TiN-BN by using complex halides of titanium and boron. Thus, the composite powder TiN and BN obtained from the KBF4-NaN3-Na2TiF6» and «NH4BF4-NaN3-Na2TiF6 systems can be classified as a nanostructured powder (nanopowder).

One-Step Synthesis of 5-Substituted 1H-Tetrazoles from an Aldehyde by Reaction with Acetohydroxamic Acid and Sodium Azide under Bi(OTf)3 Catalysis

Synthesis ◽  
2013 ◽  
Vol 45 (04) ◽  
pp. e1-e1 ◽  
Author(s):  
Madabhushi Sridhar ◽  
Kishore Mallu ◽  
Raveendra Jillella ◽  
Kondal Godala ◽  
China Beeram ◽  
...  
Keyword(s):  
Sodium Azide ◽  
Acetohydroxamic Acid ◽  
One Step

Copper-catalyzed double cyclization reaction of azidoquinones: one-step synthesis of dihydropyrroloindoloquinones and related quinolinoquinones

1987 ◽  
Vol 52 (18) ◽  
pp. 3956-3967 ◽  
Author(s):  
Yoshinori Naruta ◽  
Naoshi Nagai ◽  
Yoshihiro Arita ◽  
Kazuhiro Maruyama
Keyword(s):  
Cyclization Reaction ◽  
One Step

Catalyst-free cyclization of anthranils and cyclic amines: one-step synthesis of rutaecarpine

2019 ◽  
Vol 55 (80) ◽  
pp. 12072-12075 ◽  
Author(s):  
Jian Li ◽  
Zheng-Bing Wang ◽  
Yue Xu ◽  
Xue-Chen Lu ◽  
Shang-Rong Zhu ◽  
...  
Keyword(s):  
Cyclization Reaction ◽  
Efficient Synthesis ◽  
Cyclic Amines ◽  
Catalyst Free ◽  
One Step

An efficient synthesis of rutaecarpine derivatives via a catalyst-free and atom-efficiency cyclization reaction between commercially available anthranils and cyclic amines is described.

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