150080-78-7Relevant articles and documents
1,3-Donor/Donor-Substituted Allenes, VII. - Allenecarboxanilides by Transallenation or /-Sigmatropic Rearrangements - Building Blocks with Versatile Intra- and Intermolecular Synthetic Potential
Saalfrank, Rolf W.,Bauer, Udo,Hilbig, Klaus,Welch, Andreas
, p. 823 - 836 (2007/10/02)
The reaction of 1,3-bis(alkylarylamino)-1,3-diethoxyallenes 1, 2 with disubstituted malonyl chlorides 3 leads to N,N'-dialkyl-N,N'-diarylallene-1,1-dicarboxamides 4, 5, and 2H-pyran-2,4(3H)-diones 6, 7, respectively, with a transallenation reaction being