- A FACILE, STEREOSELECTIVE PREPARATION OF (Z)-2,4-PENTADIENOATES BY FAVORSKII REARRANGEMENT
-
Reaction of 1,3,4-tribromo-2-alkanones, efficiently prepared by direct bromination of the parent enone, with methanolic sodium methoxide gives methyl (Z)-2,4-pentadienoates with high (Z) selectivity about the α,β-double bond.
- Engler, Thomas A.,Falter, Wolfgang
-
p. 4115 - 4118
(2007/10/02)
-
- "3-Fluorisopren" (2-Fluor-3-methyl-1,3-butadien) und einige heterosubstituierte Abkoemmlinge
-
The readily accessible 1-chloro-1-fluoro-2-iodomethyl-2-methylcyclopropane undergoes zinc-promoted ring-cleavage yielding 2-fluoro-3-methyl-1,3-butadiene ('3-fluoroisoprene") in almost quantitative yield.Alternatively the iodine atom may be replaced by el
- Schlosser, Manfred,Spahic, Bojana
-
p. 1223 - 1235
(2007/10/02)
-