Definition of diastereoisomer in English:

diastereoisomer

noun

Chemistry
  • Each of a pair of stereoisomeric compounds that are not mirror images of one another.

    • ‘The adduct 6 was a single diastereoisomer while 5 was a mixture of diastereoisomers.’
    • ‘The metal ion holds the reacting molecules close together, and may control the stereochemistry of the reaction so that only a particular diastereoisomer is produced.’
    • ‘Because of the presence of two chiral carbon atoms in the dioxolane linker, the chemical synthesis route leads to two distinct diastereoisomers, in which the linkers are respectively SS and RR.’
    • ‘It has five chiral carbons and only the naturally occurring diastereoisomer is biologically active.’
    • ‘The precipitated diastereoisomer was pressed out and washed with approx.20 l of ice-cold 2-propanol.’

Pronunciation:

diastereoisomer

/ˌdʌɪəstɛrɪəʊˈʌɪsəmə/