99267-18-2Relevant academic research and scientific papers
PRACTICAL AND STEREOCONTROLLED SYNTHESES OF BOTH (1R*,3S*)- AND (1R*,3R*)-3-(2-CHLORO-3,3,3-TRIFLUORO-1-PROPENYL)-2,2-DIMETHYLCYCLOPROPANECARBOXYLATES
Fujita, Makoto,Hiyama, Tamejiro,Kondo, Kiyosi
, p. 2139 - 2142 (2007/10/02)
The title compounds of (1R*,3S*) configuration were prepared from 3-formyl-2,2-dimethylcyclopropanecarboxylate by addition of CF3CCl2ZnCl, acetylation, and reductive β-elimination with zinc, whereas the (1R*,3R*) isomer was derived from Me2C=CHCH(OH)CCl2CF3 by diazoacetylation, Cu(II) catalyzed intramolecular cyclization, and the zinc reduction.
PRACTICAL WAYS FROM ALDEHYDES TO 2-CHLORO-1,1,1-TRIFLUORO-2-ALKENES AND 2-CHLORO-1,1-DIFLUORO-1-ALKEN-3-OLS
Fujita, Makoto,Hiyama, Tamejiro
, p. 3655 - 3658 (2007/10/02)
A reagent system CF3CCl3/Zn(>2 mol)/Ac2O transformed aldehydes to 2-chloro-1,1,1-trifluoro-2-alkenes exclusively, whereas CF3CCl3/Zn(>2 mol)/AlCl3(cat.) converted aldehydes into 2-chloro-1,1-difluoro-1-alken-3-ols.
