A tunable synthesis of either benzaldehyde or benzoic acid through blue-violet LED irradiation using TBATB

Visible Light-Induced Aerobic Oxidative Dehydrogenation of C–N/C–O to C=N/C=O Bonds Using Metal-Free Photocatalysts: Recent Developments

“…In addition, the use of 9-fluorenone as photocatalyst (3-6 mol%) allowed for the obtention of aldehydes or ketones 69 from alcohols (including xanthenol, cyclohexanol and heteroaromatic substrates) in moderate to excellent yields under blue light irradiation [149]. Moreover, tetrabutylammonium tribromide (TBATB, 13 mol%) promoted the formation of aldehydes and ketones 69 from alcohols in excellent isolated yields under violet or blue light irradiation [166], a low amount of the corresponding carboxylic acid being observed. Furthermore, sodium trifluoromethanesulfinate (5 mol%) catalyzed the oxidation of secondary alcohols to ketones 69 under violet light, obtaining very good results [167].…”

Violet‐blue Light Induces “Natural” Photodynamic Plasma Disinfection with Endogenous Sensitizers

“…There are other examples of success with violet and blue light in microbe inactivation (11)(12)(13)(14)(15)(16)(17)(18)(19)(20)(21). Even other examples are emerging with violet-blue or blue light in synthetic organic (22)(23)(24)(25)(26)(27)(28) and photopolymerization reactions (29), and naturally, there is a history of blue light therapy in neonatal jaundice (30)(31)(32)(33). Yet, following Maclean and coworker's first accomplishment of microbe reduction to decent levels is the secondary challenge of protecting the sample against protein photooxidation (34)(35)(36)(37).…”

Highly Efficient One‐pot Aerobic Synthesis of α‐Aminophosphonate from Alcohols: Dual Catalytic Effect of Tetrabutylammonium Tribromide (TBATB)

“…[13][14][15][16][17] Recently we reported the tunable photooxidation of alcohols to the corresponding carbonyl compounds and benzoic acids. [18] In the synthesis of organic compounds, the efficiency of a method as well as its compatibility with the environment is one of the most important principles and therefore it is necessary to pay attention to both of them in the construction of target molecules. Also, to achieve this goal, if possible, multi-step reactions should be performed in one-pot.…”

“…[28][29][30][31][32][33][34] Very recently, we presented TBATB as an agent for alcohol and toluene oxidation under visible blue light irradiation (465 nm) under mild and green conditions. [18,35] According to our knowledge, to date, there are two reports on the synthesis of one-pot α-aminophosphonates from benzyl alcohols: (a) the first work was done in 2017 by Kaboudin et al In this work, first imines were prepared through aerobic oxidation of alcohol in the presence of NaOH for 4 days at toluene using CuO@Fe 3 O 4 magnetic nanoparticles. Then diethylphosphite was added to the reaction mixture to synthesize αaminophosphonates at reflux condition for 1 day [36] (b) Dangroo et al reported in 2020, benzyl alcohols were first oxidized in the presence of ammonium perchlorate under UV light irradiation and triethylphosphite and amines were added to the reaction mixture to produce α-aminophosphenates (Scheme 1) [36] In continuing of our works in the photocatalytic aerobic oxidation of alcohols and synthesis of α-aminophosphonates, here in, we report the efficient two steps one-pot synthesis of α-aminophophonates from alcohols in the presence of TBATB.…”

“…Then diethylphosphite was added to the reaction mixture to synthesize αaminophosphonates at reflux condition for 1 day [36] (b) Dangroo et al reported in 2020, benzyl alcohols were first oxidized in the presence of ammonium perchlorate under UV light irradiation and triethylphosphite and amines were added to the reaction mixture to produce α-aminophosphenates (Scheme 1) [36] In continuing of our works in the photocatalytic aerobic oxidation of alcohols and synthesis of α-aminophosphonates, here in, we report the efficient two steps one-pot synthesis of α-aminophophonates from alcohols in the presence of TBATB. [18,36]…”