The first organocatalytic carbonyl-ene reaction: isomerisation-free C-C bond formations catalysed by H-bonding thio-ureas.(Preliminary Communication)

The intermolecular carbonyl-ene reaction is a useful and completely atom-efficient C-C bond forming reaction. These reactions take place without a catalyst at relatively high temperatures ( > 150[degrees]C), but are more often carried out with either a stoichiometric or catalytic Lewis acid catalyst. [1, 2, 3, 4] One of the drawbacks of the intermolecular carbonyl ene reaction is substrate scope. The majority of all successful catalytic ene ...

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