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Temporary modification functional groups

A broad structural range of racemic secondary mono-, bi- and tricyclic acylated alcohols are substrates in lipase-catalyzed enantiomer-differentiating hydrolysis as the examples 1-90 of Table 11.1-16 reveal. A large number of cis- and trans-cycloalkanols bearing a functional group in 2-position (1-20, 25, 26, 58-62) is thereby available in enantiomerically pure form. Enantiomer selectivity in the case of cyclic allylic alcohols where the double bond bears no other substituent in the exposition is frequently low. Through a temporary substrate modification such as mono- or dibromination, enantiomerically pure cyclic allylic alcohols may also be obtained in these cases (51, 52). [Pg.458]


See other pages where Temporary modification functional groups is mentioned: [Pg.72]    [Pg.36]    [Pg.296]    [Pg.245]    [Pg.301]    [Pg.30]    [Pg.87]    [Pg.300]    [Pg.65]    [Pg.75]   
See also in sourсe #XX -- [ Pg.294 ]




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Functional modification

Group modification

Modifications temporary

Temporary

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