Asymmetric Synthesis of (+)-Hinokinin, (+)-Dihydrocubebin and Cubebin Dimethyl Ether, a New Lignan from Phyllanthus niruri

The enantioselectivities obtained in the catalytic asymmetric hydrogenation and allylic substitution with the L -serine and L -threonine derived ligands were almost identical

Carbene 17 was calculated to exhibit a triplet ground state in every solvent, which is favored over the singlet state by about 11 kJ mol −1 in cyclohex- ane, 10 kJ mol −1 in

In order to get the 3-chloropropyl-substituted o- carborane derivatives in a one-step reaction starting from o-carborane, we tried the reaction of dilithio- o-carborane (formed in

The results reported not only demonstrate that chiral Brønsted acids can be efficient catalysts for enantioselective in- tramolecular Michael additions, but also show the high

4 Proofs for this and the equilibria discussed below are available from the authors upon request.. consumers' beliefs, low-cost firms will not deviate to hi gher care levels, as

The structural crisis in current global regulation is not least the result of an asymmetric sovereignty in financial politics: States possess only marginal influence on

In nature, the role of asymmetries is much more pronounced still, and soon after the introduction of game theory in the study of biological contests, a series of papers

Herein we describe a catalytic asymmetric total synthesis ()–perophoramidine (1) based on a different strategy, which utilizes a molybdenum-catalyzed asymmetric allylic