METHODS FOR LABELING A SUBSTRATE USING A HETERO-DIELS-ALDER REACTION
申请人:POPIK VLADIMIR V.
公开号:US20110108411A1
公开(公告)日:2011-05-12
Methods for labeling a substrate using a hetero-Diels-Alder reaction are disclosed. The hetero-Diels-Alder reaction includes the reaction of an o-quinone methide (e.g., an o-naphthoquinone methide) with a polarized olefin to form a hetero-Diels-Alder adduct. The o-quinone methide or the polarized olefin can be attached to a surface of a substrate, and the other of the o-quinone methide or the polarized olefin can include a detectable label. The o-quinone methide can conveniently be generated by irradiation of a precursor compound, preferably in an aqueous solution, suspension, or dispersion.
Methods for Labeling a Substrate Using a Hetero-Diels-Alder Reaction
申请人:Popik Vladimir V.
公开号:US20110257047A1
公开(公告)日:2011-10-20
Methods for labeling a substrate using a hetero-Diels-Alder reaction are disclosed. The hetero-Diels-Alder reaction includes the reaction of an o-quinone methide (e.g., an o-naphthoquinone methide) with a polarized olefin to form a hetero-Diels-Alder adduct. The o-quinone methide or the polarized olefin can be attached to a surface of a substrate, and the other of the o-quinone methide or the polarized olefin can include a detectable label. The o-quinone methide can conveniently be generated by irradiation of a precursor compound, preferably in an aqueous solution, suspension, or dispersion.
Light-Induced Hetero-Diels−Alder Cycloaddition: A Facile and Selective Photoclick Reaction
作者:Selvanathan Arumugam、Vladimir V. Popik
DOI:10.1021/ja200356f
日期:2011.4.13
(k(D-A)∼ 4×10(4) M(-1) s(-1)) to electron-rich polarized olefins in an aqueous solution. The resulting photostable benzo[g]chromans are produced in high to quantitative yield. The unreacted oNQM is rapidly hydrated (k(H2O) ∼145 s(-1)) to regenerate the starting diol. This competition between hydration and cycloaddition makes oNQMs highly selective, since only vinyl ethers and enamines are reactive enough