Composition for film formation and material for insulating film formation
申请人:JSR CORPORATION
公开号:US20020172652A1
公开(公告)日:2002-11-21
A composition for film formation capable of forming a coating film excellent in low dielectric constant characteristics, cracking resistance, modulus of elasticity, and adhesion to substrates and useful as an interlayer insulating film material in semiconductor devices, etc. The composition for film formation contains (A) at least one member selected from an aromatic polyarylene and an aromatic poly (arylene ether), (B) a polyvinylsiloxane, and (C) an organic solvent.
Concise Palladium-Catalyzed Synthesis of Dibenzodiazepines and Structural Analogues
作者:Dmitry Tsvelikhovsky、Stephen L. Buchwald
DOI:10.1021/ja206229y
日期:2011.9.14
A general and highly efficient protocol for the synthesis of dibenzodiazepines and their structural analogues is reported. In the presence of catalytic quantities of palladium, readily accessible precursors are cross-coupled with ammonia and then spontaneously undergo an intramolecular condensation to form the corresponding dibenzodiazepines in onestep. This new strategy is applicable to the construction