79496-57-4Relevant articles and documents
N-Heterocyclic Carbene-Catalyzed Umpolung of Alkynyl 1,2-Diketones
Kong, Xiangwen,Zhang, Guoxiang,Yang, Shuang,Liu, Xiaozhi,Fang, Xinqiang
supporting information, p. 2729 - 2734 (2017/08/23)
The umpolung of alkynyl 1,2-diketones via N-heterocyclic carbene (NHC) catalysis was achieved for the first time, allowing the rapid access to a large variety of synthetically and pharmaceutically important α-pyrones under very mild conditions. A completely new NHC-catalyzed umpolung pattern involving an O-acylated allenolate as the key intermediate was proposed. Moreover, an unprecedented reaction pathway, featured by a series of group migrations and new bond formation, was postulated to demonstrate the formation of the products. (Figure presented.).
The Stereoselective Synthesis of Ethyl 2(E),4(Z)-Decadienoate
Byrne, Brian,Lawter, Louise M. Lafleur,Wengenroth, Karl J.
, p. 2607 - 2609 (2007/10/02)
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