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Background. Aza-Diels-Alder reactions rank among the most efficient method for the construction of nitrogen-containing six-membered ring compounds.() The reaction of Danishefsky's diene 1 with imine 2 provides a convenient protocol for the synthesis of 2-substituted-2,3-dihydro-4-pyridones 3 (Scheme (Scheme1), 1), which allow for important synthetic applications in natural and unnatural.
Danishefsky’s diene (Kitahara diene) is an organosilicon compound and a diene with the formal name trans-1-methoxy-3-trimethylsilyloxy-1,3-butadiene named after Samuel J. Danishefsky. Because the diene is very electron-rich it is a very reactive reagent in Diels-Alder reactions.
Scheme 1: Asymmetric aza-Diels-Alder reaction of Danishefsky's diene 1 with imines 2. complexes developed by Whiting et al.(19) In all the above cases, chirality transfer was carried out using chiral Lewis acid catalysts. However, these are often expensive, toxic, and not easily recycled. Up until this point, no chiral solvent is reported.
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Danishefsky Taxol total synthesis Last updated March 23, 2019 Danishefsky Taxol total synthesis overview from raw material perspective. The Danishefsky Taxol total synthesis in organic chemistry is an important third Taxol synthesis published by the group of Samuel Danishefsky in 1996 (1) two years after the first two efforts described in the Holton Taxol total synthesis and the Nicolaou Taxol.
The Danishefsky Taxol total synthesis in organic chemistry is an important third Taxol synthesis published by the group of Samuel Danishefsky in 1996 (1) two years after the first two efforts described in the Holton Taxol total synthesis and the Nicolaou Taxol total synthesis.Combined they provide a good insight in the application of organic chemistry in total synthesis.
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