115563-23-0Relevant academic research and scientific papers
Bi(OTf)3-mediated cycloisomerization of γ-alkynyl arylketones: Application to the synthesis of substituted furans
Chang, Meng-Yang,Cheng, Yu-Chieh,Lu, Yi-Ju
supporting information, p. 1264 - 1267 (2015/03/14)
A novel Bi(OTf)3-mediated cycloisomerization of γ-alkynyl arylketones 4, 7, or 10 with molecular sieve (MS) in MeNO2 affords 3-substituted furans 3, 8, or 11 at rt for 3 h in moderate to good yields. The method provides mild, less-to
(E)-4-Lithio-4-tosylbutenone Dimethyl Ketal: A New and Versatile β-Acylvinyl Anion Equivalent in Organic Synthesis
Najera, Carmen,Yus, Miguel
, p. 4708 - 4715 (2007/10/02)
The lithiation of (E)-4-tosylbutenone dimethyl ketal (12) with methyllithium at -20 deg C led to the new β-acylvinyl anion equivalent (E)-4-lithio-4-tosylbutenone dimethyl ketal (13).The treatment of intermediate 13 with different electrophilic reagents (
