Formal Aminocyanation of α,β-Unsaturated Cyclic Enones for the Efficient Synthesis of α-Amino Ketones
作者:Chunrui Sun、Matthew J. O'Connor、Daesung Lee、Donald J. Wink、Robert D. Milligan
DOI:10.1002/anie.201309435
日期:2014.3.17
occurs through the formation of pyrazolines by means of a formal dipolar cycloaddition of cyclic α,β‐unsaturated ketones with lithium trimethylsilyldiazomethane followed by novel protonolytic NN bond cleavage under mild conditions. This two‐step process provides a diverse array of structurally complex free and mono‐alkylated α‐amino ketones in excellent yields.
A synthetic approach to terpendoles: decahydrobenzo[f]chromenes by an intermolecular Diels-Alder route
作者:Debjit Basu、Malapaka Chandrasekharam、Prathama S. Mainkar、Srivari Chandrasekhar
DOI:10.3998/ark.5550190.0012.229
日期:——
Synthesis of decahydro-1H-benzo[f]chromene system using intermolecularDiels-Alder reaction has been carried out for the construction of skeleton of terpendole class of terpenoids.