Two-Photon Sensitive Coumarinyl Photoremovable Protecting Groups with Rigid Electron-Rich Cycles Obtained by Domino Reactions Initiated by a 5-<i>exo</i>-Dig Cyclocarbopalladation
نویسندگان
چکیده
We herein report the design, synthesis, and photophysical characterization of extended rigid coumarinyl derivatives showing large two-photon sensitivities (?a?u ? 125 GM) at 740 800 nm. To efficiently synthesize these complex photoremovable protecting groups (PPGs), we used step-economic domino reactions. Moreover, those new PPGs display unique bathochromic shifts (?100 nm) uncaging subproducts as a result formation more conjugated fulvene moiety.
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ژورنال
عنوان ژورنال: Organic Letters
سال: 2021
ISSN: ['1523-7060', '1523-7052']
DOI: https://doi.org/10.1021/acs.orglett.1c02778