53213-08-4Relevant articles and documents
Enantioselective palladium-catalyzed addition of malonates to 3,3-difluoropropenes
Drouin, Myriam,Paquin, Jean-Fran?ois
supporting information, p. 6023 - 6032 (2018/09/11)
Monofluoroalkenes bearing a malonate unit at the β position can be synthesized by the enantioselective addition of diesters to 3,3-difluoropropenes. The difference in reactivity regarding the geometry and the substituents of the alkene of the 3,3-difluoropropenes, as well as the alkyl groups of the malonates, was studied and limitations were identified. The reaction was also performed with different 3,3-difluoropropenes. Further synthetic transformations of a newly functionalized monofluoroalkene were also accomplished.
Catalyst-free synthesis of skipped dienes from phosphorus ylides, allylic carbonates, and aldehydes via a one-pot SN2′ allylation-wittig strategy
Xu, Silong,Zhu, Shaoying,Shang, Jian,Zhang, Junjie,Tang, Yuhai,Dou, Jianwei
, p. 3696 - 3703 (2014/05/06)
A catalyst-free allylic alkylation of stabilized phosphorus ylides with allylic carbonates via a regioselective SN2′ process is presented. Subsequent one-pot Wittig reaction with both aliphatic and aromatic aldehydes as well as ketenes provides structurally diverse skipped dienes (1,4-dienes) in generally high yields and moderate to excellent stereoselectivity with flexible substituent patterns. This one-pot S N2′ allylation-Wittig strategy constitutes a convenient and efficient synthetic method for highly functionalized skipped dienes from readily available starting materials.
Allylic Selenides in Organic Synthesis: New Methods for the Synthesis of Allylic Amines
Shea, Regan G.,Fitzner, Jeffrey N.,Fankhauser, John E.,Spaltenstein, Andreas,Carpino, Philip A.,et al.
, p. 5243 - 5252 (2007/10/02)
Oxidative rearrangement of allylic selenides in the presence of various amine nucleophiles provides synthetic access to a variety of allylic amine derivatives.The stereochemical outcome of these reactions has been investigated, and is consistent with a -sigmatropic rearrangement mechanism.Several D-α-amino acids and racemic β,γ-unsaturated α-amino acids were prepared in this manner.A variant of this process employing an achiral allylic selenide and chiral amide afforded protected allylic amines in low diastereoisomeric excess.
THE ADDITION OF CUPRATES TO VINYLTRIPHENYLPHOSPHONIUM BROMIDE: A SYNTHESIS OF 1,5-DISUBSTITUTED Z,Z-PENTA-1,4-DIENES
Just, George,O'Connor, Brian
, p. 1799 - 1802 (2007/10/02)
It is shown that alkyl, alkenyl and aryl cuprates add to vinyltriphenylphosphonium bromide to provide phosphoranes and that the Z:E ratio of their Wittig condensation products with benzaldehyde and hexanal are strongly influenced by the addition of hexame