The absolute configuration of the active component of fungicide Carpropamid
of a diastereoisomeric mixture was determined to be (1S,3R)-N-[(R)-1-(4-ch
lorophenyl)ethyl]-2,2-dichloro-1-ethyl-3-methylcyclopropanecarboxamide, C15
H18Cl3NO TWO molecules are tightly coupled in the crystal. The intermolecul
ar hydrogen bonding between C=O and H-N is responsible for this assembly.