148407-32-3Relevant articles and documents
Scalable synthesis of the pink gypsy moth Lymantria mathura sex pheromone (-)-mathuralure
Mowat, Jeffrey,Senior, James,Kang, Baldip,Britton, Robert
, p. 235 - 239 (2013/05/09)
Mathuralure (1) is the major sex pheromone component of the pink gypsy moth Lymantria mathura, a potentially devastating invasive species to North America. To support population monitoring of this moth, a gram-scale synthesis of (-)-mathuralure (1) was developed. This process relies on coupling an alkynyl lithium species with a chloroepoxide and provides access to the natural product in a 10% yield over 10 steps.
Fleming-Tamao oxidation and masked hydroxyl functionality: Total synthesis of (+)-pramanicin and structural elucidation of the antifungal natural product (-)-pramanicin
Barrett, Anthony G. M.,Head, John,Smith, Marie L.,Stock, Nicholas S.,White,Williams
, p. 6005 - 6018 (2007/10/03)
The total synthesis of (+)-pramanicin (41b) is reported, thereby establishing the relative and absolute stereochemistry of the naturally occurring antifungal agent. The key steps involve (i) conjugate addition of the diethyl((diethylamino)diphenylsilyl)zincate to a suitably protected γ- lactam 3 and quenching of the resultant enolate with the α,β-unsaturated γ,δ-epoxy aldehyde 2 (X = H), (ii) Ni(acac)2-catalyzed hydroxylation of a β-dicarbonyl array, and (iii) Fleming-Tamao oxidation to reveal the masked C-3 hydroxyl group.