Synthesis and characterization of a range of heterocyclic liquid crystalline materials incorporating the novel thiophene-pyrimidine moiety
✍ Scribed by Sharma, Sanjay; Lacey, David; Wilson, Paul
- Book ID
- 126815822
- Publisher
- Taylor and Francis Group
- Year
- 2003
- Tongue
- English
- Weight
- 923 KB
- Volume
- 30
- Category
- Article
- ISSN
- 0267-8292
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## Abstract A new approach to the synthesis of pyridazinone, ethoxypyridine, pyrazole and 7‐aminopyrazolo‐[1,5‐__a__]pyrimidine derivatives. The structure of the newly synthesized compounds was elucidated by elemental analyses, ir, ^1^H nmr spectra and in some cases by ^13^C nmr investigations.
## Abstract magnified image __E__‐3‐(__N,N__‐Dimethylamino)‐1‐(3‐methylthiazolo[3,2‐__a__]benzimidazol‐2‐yl)prop‐2‐en‐1‐one (**2**) was synthesized by the reaction of 1‐(3‐methylthiazolo[3,2‐__a__]benzimidazol‐2‐yl)ethanone (**1**) with dimethylformamide‐dimethylacetal. The reaction of **2** with