Structural investigations of 5-hydroxy-4,5-dihydroisoxazoles

► 4,5-Dihydroisoxazoles were characterized and compared with similar structures. ► A robust supramolecular synthon O-H⋅⋅⋅N,O in 4,5-dihydroisoxazole were characterized. ► Cl⋅⋅⋅Cl interaction were found as supramolecular synthon in 4,5-dihydroisoxazoles.