Successively Recycle Waste as Catalyst: A One-Pot Wittig/1,4-Reduction/Paal–Knorr Sequence for Modular Synthesis of Substituted Furans
摘要:
A one-pot tandem Wittig/conjugate reduction/PaalKnorr reaction is reported for the synthesis of di- or trisubstituted furans. This novel sequence first demonstrates the possibility of successively recycling waste from upstream steps to catalyze downstream reactions.
Substituent and wavelength effects in the photochemistry of 5,6,7,8-tetrachloro-3a,9a-dihydro-2,3,9a-triarylfuro(2,3-b)(1,4)benzodioxin derivatives
作者:William M. Horspool、Abedawn I. Khalaf
DOI:10.1016/s0040-4039(00)94524-6
日期:1983.1
A study of the photoreactions of some triarylfurobenzodioxin derivatives has shown that the outcome is dependent on the type and position of the substitution on the 9a-aryl group. A wavelength dependence is also reported.
A one-pot tandem Wittig/conjugate reduction/PaalKnorr reaction is reported for the synthesis of di- or trisubstituted furans. This novel sequence first demonstrates the possibility of successively recycling waste from upstream steps to catalyze downstream reactions.