Aldehydes were obtained in excellent yields from ruthenium-porphyrin-catalyzed oxidation of various terminal alkenes with 2,6-dichloropyridine N-oxide under mild conditions. The aldehydes generated from these ruthenium-catalyzed alkene oxidation reactions can be used in-situ for olefination reaction.....
[更多]
A Fast Transient Response Converter Is Disclosed Which Makes Use Of Stepping Inductor In A Switching Converter To Speed Up Output Voltage Response Under Fast Transient Condition. The Inductive Element In A Switching Converter Is Replaced By Two Series Or Parallel Inductive Elements, One Of Which Has.....
[更多]
The Present Invention Relates To A Pharmaceutical Composition Useful For The Treatment Of Diseases Associated With Viruses Of The Order Nidovirales Of The Family Coronaviradae, Such As Severe Acute Respiratory Syndrome (Sars) Viruses In Humans And Other Animals. In Particular, This Invention Relates.....
[更多]
Materials Containing One Or More Borazine Rings Are Employed As Materials For Electroluminescent Devices. The Compounds Have Molecular Structures Represented By The Following Formula: In Which R1-R6 Are Independently A Metal; A Whole Or Part Of An Optionally Substituted Borazine Ring; Hydrogen; Halo.....
[更多]
| |< <- | [24] [25] [26] [27] [28] [29] [30] [31] [32] [33] [34] | -> >| |
