Webb1 mars 2007 · CuCl-catalyzed green oxidative homocoupling of terminal alkynes produces symmetrical 1,4-disubstituted 1,3-diynes in good to excellent yields, using air as an environmentally friendly oxidant and the … Expand Webb5 dec. 2024 · Terminal olefins with varying chain length (2 b–e) reacted smoothly to the corresponding diesters 4 a(b–e) in moderate to good yields with very good selectivity. …
2-Alkylation of 3-Alkyindoles With Unactivated Alkenes
WebbA one-pot reaction between nitriles, hydroxylamine and Meldrum’s acids under microwave irradiation and solvent-free conditions gives 3,5-disubstituted 1,2,4-oxadiazoles in good to excellent yields. M. Adib, M. Mahdavi, N. Mahmoodi, H. Pirelahi, H. R. Bijanzadeh, Synlett, 2006, 1765-1767. Webb10 apr. 2024 · Notably, changing the propionaldehyde to other aliphatic aldehydes resulted in slightly lower yields with good to excellent stereoselectivities. Furthermore, N … ebay rayburn cookers
Free Full-Text Regiodivergent Organocatalytic Reactions - MDPI
Webb13 apr. 2024 · Yield: 30%, with the following characteristics: IR/cm −1: 1741, 1504, 1272, 1176, 1081, 1045, 928, 872, 738. 1 H NMR (CDCl 3, 400 MHz, δ/ppm): 5.61–5.63 (m, 4H; H 5 ), 6.52–6.58 (m, 4H; H 1 ), 6.77–6.81 (m, 4H; H 2 ), 7.18–7.35 (m, 4H; H 3 ), 7.60–7.65 (m, 4H, H 4 ), 7.89–7.96 (m, 2H; H 6 ), 8.10–8.12 (m, 2H; H 7 ), 8.38–8.42 (m, 8H; H 8 … Webb1 jan. 2024 · All reacted smoothly to yield the corresponding propargylamines in good to excellent yields within the time frame of less than 6 h. Next, on utilizing morpholine as … Webb20 maj 2024 · The effects of type of catalysts, catalyst amount, CO2 pressure, reaction temperature and catalyst stability have also been investigated in detail, the catalyst KIT … ebay rawhide cars