Rendering Schrock-type Molybdenum Alkylidene Complexes Air Stable: User-Friendly Precatalysts for Alkene Metathesis
作者:Johannes Heppekausen、Alois Fürstner
DOI:10.1002/anie.201102012
日期:2011.8.16
A matter of convenience: Schrock molybdenumalkylidenes are amongst the most powerful olefin metathesis catalysts known to date, but their sensitivity to air and moisture mandates their handling in a glove‐box or by Schlenk techniques. This inconvenience is circumvented by using the corresponding phenanthroline‐ or bipyridine adducts, which are bench‐stable and hence very user‐friendly. The active
Catalytic Enantioselective Ring-Closing Metathesis by a Chiral Biphen−Mo Complex
作者:John B. Alexander、Daniel S. La、Dustin R. Cefalo、Amir H. Hoveyda、Richard R. Schrock
DOI:10.1021/ja974353i
日期:1998.4.1
Synthesis of the Oxygenated Pactamycin Core
作者:Spencer Knapp、Younong Yu
DOI:10.1021/ol0702472
日期:2007.3.1
[structure: see text]. Pactamycin, one of the most complex and densely functionalized aminocyclitol antibiotics known, presents synthetic challenges that include reactivity and sterics, relative and absolute stereochemistry, and functional group compatibility and protection. An approach is reported that features four different types of (cyclopentane) face selective functionalization reactions and results