## Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
✦ LIBER ✦
Regioselective Cyclization of 2-Isothiocyanatobenzonitrile with Carbon 1,1-Dinucleophiles.
✍ Scribed by Peter Langer; Uwe Albrecht
- Book ID
- 101951393
- Publisher
- John Wiley and Sons
- Year
- 2003
- Weight
- 84 KB
- Volume
- 34
- Category
- Article
- ISSN
- 0931-7597
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## Abstract Cyclic 1,3‐dichlorotrimethinecyanines 1 were used for the preparation of condensed polycycles 2–13 with high regioselectivity. In the case of five‐membered cyanines the exclusive formation of the linear‐type products was observed, while with six‐ and seven‐membered cyanines the linear o
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and 3-aminopyrazole and 3-amino-1,2,4-triazole provide convenient access to biologically relevant 3H-imidazo[1,2-b]pyrazoles and a 5H-imidazo[2,1-c][1,2,4]triazole.