Synthesis of 2-ethynyl- and 4,5-diethynyl-1-methylimidazoles
β Scribed by M. S. Shvartsberg; L. N. Bizhan; E. E. Zaev; I. L. Kotlyarevskii
- Book ID
- 111902187
- Publisher
- Springer
- Year
- 1972
- Tongue
- English
- Weight
- 227 KB
- Volume
- 21
- Category
- Article
- ISSN
- 1573-9171
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π SIMILAR VOLUMES
C5 to C2 position migratiw of 2-trialkylsilyl and thiophctgd groups have bus observed upon lithhth at the Cs-position of cxxqwkg C2-subwituted l-muhylixnkko~. Double brominelithium exchange of I-mcthyL2$sle (5) affords a facile, qluwthive and uuequivocal synthc& of 2,5\_dilithio\_l~l-~~ (4). Raction
## Abstract For Abstract see ChemInform Abstract in Full Text.
## Abstract In this paper, we report the synthesis and optoβelectronic properties of differentially substituted 1,4βdiethynylβ and 1,1,4,4βtetraethynylbutaβ1,2,3βtrienes. These novel chromophores greatly extend the series of building modules for oxidative coupling, which includes 1,2βdiethynylβ and