期刊
PHOTOCHEMICAL & PHOTOBIOLOGICAL SCIENCES
卷 3, 期 9, 页码 859-863出版社
SPRINGERNATURE
DOI: 10.1039/b404268a
关键词
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We have shown that CdS and CdSe nanoparticles can act as very efficient and highly chemoselective photocatalysts for the reduction of aromatic azides to aromatic amines. In several cases, the reaction proceeds with quantum yields near 0.5, which approaches the theoretical maximum for a two-electron process. The wide scope of the reaction was confirmed with compounds containing electron withdrawing (- NO2, CO2R, COR) and electron donating groups (- OMe, - R, - Cl) at the para-, meta-, and ortho-positions. Remarkably, the reaction is relatively insensitive to the electron demands of the substituent. However, azides with meta- substituents give slightly lower yields than those with the same substituent at the ortho- or para-position.
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