89809-90-5Relevant academic research and scientific papers
Phosphine-catalyzed addition/cycloaddition domino reactions of β′-Acetoxy allenoate: Highly stereoselective access to 2-oxabicyclo[3.3.1]nonane and Cyclopenta[a]pyrrolizine
Gu, Yiting,Hu, Pengfei,Ni, Chunjie,Tong, Xiaofeng
, p. 6400 - 6406 (2015)
Two classes of phosphine-catalyzed addition/cycloaddition domino reactions of β′-acetoxy allenoate 1 have been developed. The reaction of 1 with 2-acyl-3-methyl-acrylonitrile 2 readily occurs to give 2-oxabicyclo[3.3.1]nonane 3, furnishing the β′-addition
SYNTHESIS OF HETEROCYCLIC COMPOUNDS. XXXVI. PREPARATION OF ALKYL SUBSTITUTED PYRANCARBONITRLES.
Soto, Jose L.,Seoane, Carlos,Martin, Nazario,Quinteiro, Margarita
, p. 1 - 6 (2007/10/02)
The cyclization of the ketonitriles obtained from the reaction of suitably substituted propenones with propanedinitrile leads to alkyl substituted 4H-pyrans.Some of the starting propenones had to be prepared by base promoted opening of an isoxazole ring in the presence of an aldehyde.An exception to the general synthesis is also reported.
