Dimethyl Sulfide (DMS) is used in API and intermediate synthesis as the sulfonium salt (in epoxidation reactions) or in borane
reducing agents (BH3-DMS).
We discovered that Diphenylaminoacidonate (O,N) borane
The complexing ability of amine towards borane
was monitored by [sup.
Pyrromethene dialkynyl borane
complexes for "cascatelle" energy transfer and protein labeling.
dimethylsulphide (10M solution), 5ml (50 m mol) was taken in a 200ml round-bottom flask, provided with a rubber stoppred side arm and fitted with a condenser connected to a mercury bubbler.
Among specific topics are influences of surface chemistry on the dehydrogenation kinetics of ammonia borane
in porous carbon scaffolds, the synthesis and photocatalytic performance of hierarchical porous titanium phosphonate hybrid materials, the catalytic activity of sulfated zirconia promoted with cerium oxide, basic ion exchange resins as heterogeneous catalysts for biodiesel synthesis, and a novel non-metal oxygen reduction electrocatalyst based on platelet carbon nanofiber.
Electrospining concept has been used to incorporate ammonia borane
core and polystyrene sheath in a nano matrix which is permeable to hydrogen.
recently reported that mechanical milling of alkali metal hydrides with ammonia borane
can further lower the decomposition temperature (5).
Further reduction of this product with a borane
solution in THF gave 4,4',4"-methanetriyltris(2-hydroxymethyl)phenol) in 76% yield.
Matos highlighted the recently developed new amine borane
, 5-ethyl-2-methylpyridine borane
(PEMB), as an excellent reducing agent for reductive amination.
The authors cover practical features of stability, reactivity, and workup, as well as such aspects of allylboration as the stereochemical control elements, including relative diastereoselection with crotylboranes, induced (internal) diastereoselection with chiral carbonyl compounds, auxiliary-controlled enantio-selective allylations with chiral borane
reagents, and recent advances in catalysis of allylboration.
Under the terms of the subcontract, Ensign Bickford will provide a fueling system that converts ammonia borane
into hydrogen, and Protonex will provide a fuel cell system that converts hydrogen to electricity.