A new methodology for the ortho-hydroxylation of aromaticaldehydes via ortho-lithiated aromatic amino alkoxides provides easy access to 2-hydroxypyrene-1-carbaldehyde, a valuable precursor for biologically important pyrenofurans and pyrenocoumarins.
Polymer, hardmask composition, and method of forming patterns
申请人:SAMSUNG SDI CO., LTD.
公开号:US11220570B2
公开(公告)日:2022-01-11
A polymer, a hardmask composition, and a method of forming patterns, the polymer including structural units obtained by a reaction of a reaction mixture that includes a substituted or unsubstituted indole compound, a first aromatic aldehyde compound including a substituted or unsubstituted C3 to C20 branched alkyl group thereon, and a second aromatic aldehyde compound that is different from the first aromatic aldehyde compound.