Patent ID: 9090542
Filing Date: 2015-07-28
Classification: B01J,C07C,C07D

Abstract:
1. A method for selectively labeling a substrate, the method comprising: providing a precursor compound having one of the formulas: irradiating the precursor compound at a wavelength of 300 to 350 nm under conditions effective to form an o-naphthoquinone methide having one of the formulas: and contacting the o-naphthoquinone methide with a polarized olefin attached to a surface of a substrate and having the formula: under conditions effective to form a hetero-Diels-Alder adduct, wherein: each R each R each R X is O or NR Y is OR each R optionally, two or more R optionally, two or more R optionally, two or more R optionally, two or more R with the proviso that at least one R