scholarly journals Reduction of Carbonyl Compounds to Their Corresponding Alcohols by (Nicotine)(tetrahydroborato)zinc Complex as a New Stable and Efficient Reducing Agent

2012 ◽  
Vol 9 (4) ◽  
pp. 2338-2345 ◽  
Author(s):  
Davood Setamdideh ◽  
Mostafa Rafigh
Keyword(s):  
Carbonyl Compounds ◽  
Room Temperature ◽  
Zinc Complex ◽  
Reducing Agent ◽  
Reduction Reactions

(Nicotine)(tetrahydroborato)zinc complex, [Zn(BH4)2(nic)], as a stable yellow solid, was prepared quantitatively by complexation of an equimolar amounts of zinc tetrahydroborate and Nicotine at room temperature. This reagent can easily reduce variety of carbonyl compounds such as aldehydes, ketones, acyloins and α-diketones to their corresponding alcohols in good to excellent yields. Reduction reactions were performed in CH3CN at room temperature.

scholarly journals Zn(BH4)2/Al2O3: A new synthetic method for efficient and convenient reduction of organic carbonyl compounds to their corresponding alcohols

2013 ◽  
Vol 78 (1) ◽  
pp. 1-13 ◽  
Author(s):  
Davood Setamdideh ◽  
Behrooz Khezri ◽  
Mehdi Rahmatollahzadeh
Keyword(s):  
Carbonyl Compounds ◽  
Room Temperature ◽  
Allylic Alcohols ◽  
Synthetic Method ◽  
Reduction Reactions

Zn(BH4)2 (0.5-2 mmol) in the presence of Al2O3 (1 mmol) reduces varieties of organic carbonyl compounds such as aldehydes, ketones, acyloins, ?-diketones and ?, ?-unsaturated carbonyl compounds to their corresponding alcohols. Reduction reactions were carried out in THF at room temperature in high to excellent yields of products. The chemoselective reduction of aldehydes over ketones was accomplished successfully with this reducing system. In addition, regioselectivity and exclusive 1,2-reduction of conjugated carbonyl compounds to their corresponding allylic alcohols in high to excellent yields was accomplished successfully with this reducing system.

Reduction of Carbonyl Compounds with NaBH4 under Ultrasound Irradiation and Aprotic Condition

2004 ◽  
Vol 59 (6) ◽  
pp. 704-710 ◽  
Author(s):  
Behzad Zeynizadeh ◽  
Saiedeh Yahyaei
Keyword(s):  
Sodium Borohydride ◽  
Carbonyl Compounds ◽  
Room Temperature ◽  
Ultrasound Irradiation ◽  
Reduction Reactions

A variety of carbonyl compounds are reduced to their corresponding alcohols with sodium borohydride under ultrasound irradiation and aprotic condition. Reduction reactions are performed in THF at room temperature or under reflux condition. The product alcohols were obtained in good to excellent yields. The chemoselective reduction of aldehydes over ketones was achieved successfully with this system.

NaBH4/NaHSO4·H2O a Heterogeneous Acidic System for a Mild and Convenient Reduction of Carbonyl Compounds under Protic Condition

2005 ◽  
Vol 60 (4) ◽  
pp. 453-457 ◽  
Author(s):  
Behzad Zeynizadeh ◽  
Tarifeh Behyar
Keyword(s):  
Carbonyl Compounds ◽  
Room Temperature ◽  
Reduction Reactions ◽  
Heterogeneous Condition ◽  
Unsaturated Aldehydes ◽  
Sodium Bisulfate ◽  
Aldehydes And Ketones ◽  
Acidic Reagent

NaBH4 in the presence of sodium bisulfate (NaHSO4·H2O), a weakly acidic reagent, efficiently reduces a variety of carbonyl compounds such as aldehydes, ketones, α,β -unsaturated aldehydes and ketones, α-diketones and acyloins to their corresponding alcohols in acetonitrile under heterogeneous condition. Reduction reactions were accomplished at room temperature or under reflux condition

Theoretical insights into boron reducing agent for the reduction of carbonyl compounds

2021 ◽  
Author(s):  
Nana Ma ◽  
Qingli Xu ◽  
Guisheng Zhang
Keyword(s):  
Carbonyl Compounds ◽  
Catalytic Reduction ◽  
Reducing Agents ◽  
Reducing Agent ◽  
Reduction Reactions

In this perspective we present computational progress in the reduction of carbonyl compounds using boron reducing agents such as L∙BH3, HBcat, HBpin and 9-BBN. For the catalytic reduction reactions, the...

scholarly journals Efficient and Convenient Reduction of Organic Carbonyl Compounds to their Corresponding Alcohols by Zn(BH4)2/Charcoal in THF

2017 ◽  
Vol 56 (2) ◽  
Author(s):  
Davood Setamdideh ◽  
Mehdi Rahmatollahzadeh
Keyword(s):  
Carbonyl Compounds ◽  
Room Temperature ◽  
Allylic Alcohols ◽  
Reduction Reactions

Zn(BH<sub>4</sub>)<sub>2</sub> (0.5-1.5 mmol) in the presence of charcoal (1 mmol) reduces a variety of organic carbonyl compounds such as aldehydes, ketones, acyloins, α-diketones and α,β-unsaturated carbonyl compounds to their corresponding alcohols. Reduction reactions were carried out in THF at room temperature in high to excellent yields. The chemoselective reduction of aldehydes over ketones was successfully accomplished with this reducing system. In addition, regioselectivity and exclusive 1,2-reduction of conjugated carbonyl compounds to their corresponding allylic alcohols was also performed in in high to excellent yields with this reducing system.

Controlled Growth and Characterization Ag/ZnO Nanotetrapods for Humidity Sensing

2018 ◽  
Vol 21 (7) ◽  
pp. 462-467
Author(s):  
Babak Sadeghi
Keyword(s):  
Room Temperature ◽  
Zinc Complex ◽  
Water Solution ◽  
Particle Morphology ◽  
Quick Response ◽  
Separation System ◽  
Humidity Sensing ◽  
Sensor Material ◽  
Highly Sensitive

Aim and Objective: Ultrafine Ag/ZnO nanotetrapods (AZNTP) have been prepared successfully using silver (I)–bis (oxalato) zinc complex and 1, 3-diaminopropane (DAP) with a phase separation system, and have been injected into a diethyl/water solution. Materials and Methods: This crystal structure and lattice constant of the AZNTP obtained were investigated by means of a SEM, XRD, TEM and UV-vis spectrum. Results: The results of the present study demonstrated the growth and characterization AZNTP for humidity sensing and DAP plays a key role in the determination of particle morphology. AZNTP films with 23 nm in arm diameter have shown highly sensitive, quick response sensor material that works at room temperature.

Sodium borohydride: A versatile reagent in the reductive N-monoalkylation of α-amino acids and α-amino methyl esters

2002 ◽  
Vol 80 (7) ◽  
pp. 779-788 ◽  
Author(s):  
Giancarlo Verardo ◽  
Paola Geatti ◽  
Elena Pol ◽  
Angelo G Giumanini
Keyword(s):  
Amino Acids ◽  
Amino Acid ◽  
Sodium Borohydride ◽  
Carbonyl Compounds ◽  
Condensation Reaction ◽  
Methyl Esters ◽  
Reducing Agent ◽  
Reductive Condensation ◽  
Versatile Reagent

α-Amino acids and α-amino methyl esters are easily converted to their N-monoalkyl derivatives by a reductive condensation reaction using several carbonyl compounds in the presence of sodium borohydride. This reducing agent has shown a wide versatility with minor but essential procedural variations. The reaction allows the α-monodeuterium labeling of the new N-substituent by use of sodium borodeuteride.Key words: α-amino acid, α-amino methyl esters, sodium borohydride, reductive N-monoalkylation, carbonyl compounds.

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