Four alkoxo tungsten complexes [Cp 2W(PMe 3)OR] +OTs -(R=Me,Et, n Pr, i Pr) and monohydrido tungsten complex [Cp 2W(H)(PMe 3)] +OTs - were synthesized and characterized by IR, 1H NMR and elemental analysis. The β eli...Four alkoxo tungsten complexes [Cp 2W(PMe 3)OR] +OTs -(R=Me,Et, n Pr, i Pr) and monohydrido tungsten complex [Cp 2W(H)(PMe 3)] +OTs - were synthesized and characterized by IR, 1H NMR and elemental analysis. The β elimination of these complexes in dimethyl sulfoxide solvent yields monohydrido tungsten complex [Cp 2W(H)(PMe 3)] +OTs - and a ketone or aldehyde.展开更多
Dear Editor,Lake Baikal and its neighboring territories are an intermediate zone for the'steppe'and'arctic-like'rabies virus lineages in Russia.After the elimination of dog-mediated rabies during the e...Dear Editor,Lake Baikal and its neighboring territories are an intermediate zone for the'steppe'and'arctic-like'rabies virus lineages in Russia.After the elimination of dog-mediated rabies during the early 1980s,this area remained rabies-free for over 25–30 years.A sudden reappearance of rabies occurred in this zone in the Republic of Buryatia in 2011–2012.A marginal part of the Mongolian steppe penetrates the Siberian taiga forests in this area,and human and animal rabies have been repeatedly recorded in the Republic of Buryatia from the end of展开更多
文摘Four alkoxo tungsten complexes [Cp 2W(PMe 3)OR] +OTs -(R=Me,Et, n Pr, i Pr) and monohydrido tungsten complex [Cp 2W(H)(PMe 3)] +OTs - were synthesized and characterized by IR, 1H NMR and elemental analysis. The β elimination of these complexes in dimethyl sulfoxide solvent yields monohydrido tungsten complex [Cp 2W(H)(PMe 3)] +OTs - and a ketone or aldehyde.
基金supported by the Federal Service for Surveillance in the Sphere of Consumers’ Rights Protection and Human Welfare (Rospotrebnadzor)All animal experiments were performed in accordance with Regulations for Proper Conduct of Animal Experiments (confirmed by order of the Ministry of Health USSR N 755 12-8-1977)
文摘Dear Editor,Lake Baikal and its neighboring territories are an intermediate zone for the'steppe'and'arctic-like'rabies virus lineages in Russia.After the elimination of dog-mediated rabies during the early 1980s,this area remained rabies-free for over 25–30 years.A sudden reappearance of rabies occurred in this zone in the Republic of Buryatia in 2011–2012.A marginal part of the Mongolian steppe penetrates the Siberian taiga forests in this area,and human and animal rabies have been repeatedly recorded in the Republic of Buryatia from the end of
