• facile open air oxidation of benzylic alcohols in distilled water by in situ made copper(ii) complexes

    جزئیات بیشتر مقاله
    • تاریخ ارائه: 1392/07/24
    • تاریخ انتشار در تی پی بین: 1392/07/24
    • تعداد بازدید: 1043
    • تعداد پرسش و پاسخ ها: 0
    • شماره تماس دبیرخانه رویداد: -
     a highly efficient, selective and green catalytic protocol for open air oxidation of primary benzylic alcohols into aldehydes by in situ made n-isopropyl-3,5-di-tert-butylsalicylaldimine (hl3)–cu(ii) complexes and tempo (2,2,6,6-tetramethyl-piperidinyloxyl radical) is introduced herein. distilled water as a solvent the reaction proceeds at 80 °c temperature without any auxiliarities such as base and/or co-solvent. for example, benzyl alcohol is quantitatively and selectively oxidized to benzaldehyde within a few hours under optimized reaction conditions [80 °c, open air, 0.3 mol% cubr2, 2 mol% hl3, 3 mol% tempo and 5 ml of distilled water]. under anaerobic conditions, the catalyst decomposes to a free ligand and cu2o nanoparticles (diameter >50 nm) via anticipated cu(i)-hydroxo complex. on the basis of these observations and deuteration studies, a plausible reaction mechanism is proposed for the catalytic system.

سوال خود را در مورد این مقاله مطرح نمایید :

با انتخاب دکمه ثبت پرسش، موافقت خود را با قوانین انتشار محتوا در وبسایت تی پی بین اعلام می کنم
مقالات جدیدترین ژورنال ها