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

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!

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

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.

One step construction of a taxane-like skeleton by a diendiyne metathesis cyclization reaction

2017 ◽  
Vol 4 (3) ◽  
pp. 460-466 ◽  
Author(s):  
J. Otero-Fraga ◽  
J. R. Granja
Keyword(s):  
Cyclization Reaction ◽  
One Step

One-step cyclization for the formation of the characteristic tricyclic system of taxanes is described.

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

scholarly journals Tandem addition-cyclization reaction catalyzed by ytterbium chloride: An efficient one-step synthesis of 2-amino-4H-3,1-benzothiazine

2013 ◽  
Vol 58 (7) ◽  
pp. 717-723 ◽  
Author(s):  
Jie Huang ◽  
Yong Yu ◽  
Lu Hua ◽  
ZhiGang Yao ◽  
Fan Xu ◽  
...  
Keyword(s):  
Cyclization Reaction ◽  
One Step ◽  
Ytterbium Chloride

An Interactive Minicomputer Program for the Indexing and Simulation of Electron Diffraction Patterns

1976 ◽  
Vol 34 ◽  
pp. 542-543
Author(s):  
R.P. Goehner ◽  
W.T. Hatfield ◽  
Prakash Rao
Keyword(s):  
Electron Diffraction ◽  
Real Time ◽  
Pattern Analysis ◽  
Flow Diagram ◽  
Hard Copy ◽  
Time Analysis ◽  
Real Time Analysis ◽  
Transmission Electron ◽  
One Step ◽  
Diffraction Patterns

Computer programs are now available in various laboratories for the indexing and simulation of transmission electron diffraction patterns. Although these programs address themselves to the solution of various aspects of the indexing and simulation process, the ultimate goal is to perform real time diffraction pattern analysis directly off of the imaging screen of the transmission electron microscope. The program to be described in this paper represents one step prior to real time analysis. It involves the combination of two programs, described in an earlier paper(l), into a single program for use on an interactive basis with a minicomputer. In our case, the minicomputer is an INTERDATA 70 equipped with a Tektronix 4010-1 graphical display terminal and hard copy unit.A simplified flow diagram of the combined program, written in Fortran IV, is shown in Figure 1. It consists of two programs INDEX and TEDP which index and simulate electron diffraction patterns respectively. The user has the option of choosing either the indexing or simulating aspects of the combined program.

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