913706-72-6Relevant articles and documents
Ni-Catalyzed Asymmetric Cycloisomerization of Dienes by Using TADDOL Phosphoramidites
Schmitz, Christian,Leitner, Walter,Franciò, Giancarlo
supporting information, p. 10696 - 10702 (2015/07/20)
A library of α,α,α,α-tetraaryl-1,3-dioxolane-4,5-dimethanol (TADDOL)-based phosphoramidites has been synthesized and applied in the Ni-catalyzed cycloisomerization of different dienes. Through the systematic variation of the three structural motifs of the
Development, mechanism, and scope of the palladium-catalyzed enantioselective allene diboration
Burks, Heather E.,Liu, Shubin,Morken, James P.
, p. 8766 - 8773 (2008/02/12)
In the presence of a chiral phosphoramidite ligand, the palladium-catalyzed diboration of allenes can be executed with high enantioselectivity. This reaction provides high levels of selectivity with a range of aromatic and aliphatic allene substrates. Iso
Enantioselective rhodium-catalyzed [2+2+2] cycloaddition of alkenyl isocyanates and terminal alkynes: Application to the total synthesis of (+)-lasubine II
Yu, Robert T.,Rovis, Tomislav
, p. 12370 - 12371 (2007/10/03)
The use of TADDOL-based phosphoramidite ligands on rhodium allows for the incorporation of terminal alkynes in the [2+2+2] cycloaddition with alkenyl isocyanates. Terminal aliphatic alkynes provide bicyclic lactams, while the use of aryl alkynes provides complementary access to vinylogous amides. Product selectivity seems to be governed by a combination of electronics and sterics, with smaller and/or more electron-deficient substituents favoring lactam formation. The use of homologous alkenyl isocyanates leads to an expedient asymmetric total synthesis of the alkaloid lasubine II. Copyright