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Beilstein J. Org. Chem. 2017, 13, 323–328, doi:10.3762/bjoc.13.35
Graphical Abstract
Scheme 1: A) General overview of the Takai olefination for the formation of alkenyl halides 2 from aldehydes 1...
Scheme 2: Proposed model for the chromium(II)-mediated homologation of aldehydes to form (E)-alkenes. Hodsgon...
Scheme 3: An unusually high level of (Z)-stereoselectivity was observed in the Takai olefination of 6. (E):(Z...
Scheme 4: Takai olefination of meta-hydroxybenzaldehyde.
Scheme 5: Yield for both products and residual starting material following a scaled up Takai olefination of s...
Figure 1: Positive correlation between the amount (Z)-product and σm for the series of meta-halogenated salic...
Scheme 6: Proposed mechanism for (Z)-selective Takai olefination, whereby coordination of the ortho-OH to the...