leakage of the probe in materials, a PN2 monomer was successfully incorporated with MMA to form a profluorescent copolymer probe. Furthermore, PN1 and PN2–MMA copolymer probes offered high sensitivity of detection of ROS in the presence of collagen fibrils with detection limits of 1.1 and 2.7 μM, respectively. The mechanism of ROS detection and inhibition of collagen degradation by profluorescent nitroxides
Sequential Reduction of Nitroalkanes Mediated by CS<sub>2</sub> and Amidine/Guanidine Bases: A Controllable Nef Reaction
作者:Minsoo Ju、Weiyang Guan、Jennifer M. Schomaker、Kaid C. Harper
DOI:10.1021/acs.orglett.9b02987
日期:2019.11.15
In this letter, we describe a mild, functional group-tolerant reductive Nef reaction that utilizes CS2 and an amidine or guanidine base to sequentially cleave N–O bonds. These conditions transform secondary nitroalkanes to ketones via an isolable oxime with minimal erosion at labile stereogenic carbons, show excellent compatibility with groups sensitive to oxidizing or reducing conditions, display