By combining 2 chloropyridine, 1,3,4 thiadiazole and acylamide, three toxophoric moieties seven 2 [ N (1 methoxycarbonyl)ethyl N acyl]amino 5 [(2 chloropyrid) 4 yl] 1,3,4 thiadiazoles(8) were synthesized in seven step...By combining 2 chloropyridine, 1,3,4 thiadiazole and acylamide, three toxophoric moieties seven 2 [ N (1 methoxycarbonyl)ethyl N acyl]amino 5 [(2 chloropyrid) 4 yl] 1,3,4 thiadiazoles(8) were synthesized in seven steps. The preliminary biological activity tests show that the title compounds reveal a certain plant growth regulating effect as well as fungicidal activity.展开更多
Two series of solid complexes of rare earth nitrates and picrates with the "back-to-back" terpyridine, 6′,6″-bis(2-pyridyl)-2,2′:4′,4″:2″,2′″-quaterpyridine (L) have been synthesized. These complexes...Two series of solid complexes of rare earth nitrates and picrates with the "back-to-back" terpyridine, 6′,6″-bis(2-pyridyl)-2,2′:4′,4″:2″,2′″-quaterpyridine (L) have been synthesized. These complexes have been characterized by elemental analysis, conductivity measurements, thermal analysis and IR spectroscopy. At the same time, the luminescent properties of the Eu(Ⅲ) and Tb(Ⅲ) complexes were also studied.展开更多
Rhodium complex in situ formed by (R)PPhos (4,4’,6,6’tetramethoxy2,2’bis(diphenylphosphino)1,1’bipyridine) with the available rhodium precursors are used for the asymmetric hydroformylation of styren...Rhodium complex in situ formed by (R)PPhos (4,4’,6,6’tetramethoxy2,2’bis(diphenylphosphino)1,1’bipyridine) with the available rhodium precursors are used for the asymmetric hydroformylation of styrene.Effects of total pressure,temperature and the ratio of phosphine/rhodium on catalytic activity,chemoand enantioselectivity are discussed.(R)PPhosRh shows higher activity and regioselectivity and the enantioselectivity is as much as that catalyzed by (S)BINAPRh in the in situ asymmetric hydroformylation of styrene.展开更多
文摘By combining 2 chloropyridine, 1,3,4 thiadiazole and acylamide, three toxophoric moieties seven 2 [ N (1 methoxycarbonyl)ethyl N acyl]amino 5 [(2 chloropyrid) 4 yl] 1,3,4 thiadiazoles(8) were synthesized in seven steps. The preliminary biological activity tests show that the title compounds reveal a certain plant growth regulating effect as well as fungicidal activity.
文摘Two series of solid complexes of rare earth nitrates and picrates with the "back-to-back" terpyridine, 6′,6″-bis(2-pyridyl)-2,2′:4′,4″:2″,2′″-quaterpyridine (L) have been synthesized. These complexes have been characterized by elemental analysis, conductivity measurements, thermal analysis and IR spectroscopy. At the same time, the luminescent properties of the Eu(Ⅲ) and Tb(Ⅲ) complexes were also studied.
文摘Rhodium complex in situ formed by (R)PPhos (4,4’,6,6’tetramethoxy2,2’bis(diphenylphosphino)1,1’bipyridine) with the available rhodium precursors are used for the asymmetric hydroformylation of styrene.Effects of total pressure,temperature and the ratio of phosphine/rhodium on catalytic activity,chemoand enantioselectivity are discussed.(R)PPhosRh shows higher activity and regioselectivity and the enantioselectivity is as much as that catalyzed by (S)BINAPRh in the in situ asymmetric hydroformylation of styrene.
