ChemInform Abstract: One-Pot Hydrogen Peroxide and Hydrohalic Acid Induced Ring Closure and Selective Aromatic Halogenation to Give New Ring-Fused Benzimidazoles.

ChemInform ◽  
2015 ◽  
Vol 46 (43) ◽  
pp. no-no
Author(s):  
Michael Gurry ◽  
Martin Sweeney ◽  
Patrick McArdle ◽  
Fawaz Aldabbagh
2015 ◽  
Vol 17 (11) ◽  
pp. 2856-2859 ◽  
Author(s):  
Michael Gurry ◽  
Martin Sweeney ◽  
Patrick McArdle ◽  
Fawaz Aldabbagh

2018 ◽  
Vol 20 (21) ◽  
pp. 6970-6974 ◽  
Author(s):  
Martin Sweeney ◽  
Lee-Ann J. Keane ◽  
Michael Gurry ◽  
Patrick McArdle ◽  
Fawaz Aldabbagh

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.


1978 ◽  
Vol 31 (5) ◽  
pp. 1095 ◽  
Author(s):  
DE Cowley ◽  
CC Duke ◽  
AJ Liepa ◽  
JK Macleod ◽  
DS Letham

The structures of the major stable plant metabolites of the cytokinins zeatin and 6-benzylaminopurine have been confirmed by synthesis to be 7- and 9-β-D-glucopyranosides. The small quantities of metabolites initially isolated (< 100 μg) precluded assignment of the glucose ring size or configuration of the anomeric linkage so that synthesis of both the furanose and pyranose forms of 7-β-D- and 9-β-D-glucosylzeatin and 6-benzylaminopurine was undertaken which allowed direct u.v., m.s. and t.l.c. comparison with the metabolites. Numerous synthetic routes to the unusual 7-glucosides of the two cytokinins were explored, the most successful utilizing a one-pot pyrimidine ring closure of an imidazole derivative to afford directly in high yield the required 7-glucosides of zeatin and 6-benzylaminopurine.


2017 ◽  
Vol 28 (6) ◽  
pp. 1306-1311 ◽  
Author(s):  
Wei Liu ◽  
Chaojun Lei ◽  
Hongxiu Zhang ◽  
Xiaolin Wu ◽  
Qing Jia ◽  
...  

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