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|Title:||Formation of functionalized cyclopentenes via catalytic asymmetric [3+2] cycloaddition of acrylamides with an allenoate promoted by dipeptide-derived phosphines|
bifunctional phosphine catalysts
|Source:||Han, X., Wang, S.-X., Zhong, F., Lu, Y. (2011). Formation of functionalized cyclopentenes via catalytic asymmetric [3+2] cycloaddition of acrylamides with an allenoate promoted by dipeptide-derived phosphines. Synthesis (12) : 1859-1864. ScholarBank@NUS Repository. https://doi.org/10.1055/s-0030-1260460|
|Abstract:||Acrylamides derived from 3,5-dimethyl-1H-pyrazole are employed in the asymmetric [3+2] cycloaddition with the allenoate, tert-butyl buta-2,3-dienoate, for the first time. d-Threonine-l-tert-leucine-based bifucntional phosphines are effective catalysts for the above reactions, affording regiospecific [3+2]-annulation products in excellent yields and with moderate enantioselectivities. © Georg Thieme Verlag Stuttgart - New York.|
|Appears in Collections:||Staff Publications|
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