104531-15-9Relevant articles and documents
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.
Synthesis and X-Ray Crystal Structure of a New Potent Pyrethroid Acid, (+/-)-cis-3--2,2-dimethylcyclopropanecarboxylic Acid
Engel, John F.,McPhail, Andrew T.,Miller, Richard W.
, p. 1737 - 1740 (2007/10/02)
Single-crystal X-ray analysis of the title compound has established its structure and molecular geometry.Crystals are monoclinic, space group P21/c, with a = 9.487(4), b = 8.009(4), c = 16.214(6) Angstroem, β = 119.91(1) deg, Z = 4.The structure was solved by direct methods and refined by full-matrix least-squares calculations to R 0.056 over 1242 reflections measured by diffractometer.The crystals contain centrosymmetric hydrogen-bonded dimers (O...O 2.65 Angstroem) in which the carboxy and vinyl substituents are in a 'bisecting' orientation, and the C=O group and one of hydrogen atoms on each methyl group point over the cyclopropane ring.The bond lengths in the ring reflect the substitution pattern.