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.

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.

Ultrasound-Promoted Reduction of Conjugated Enones, α-Diketones and Acyloins with NaBH4 under Aprotic Condition

2004 ◽  
Vol 59 (6) ◽  
pp. 699-703 ◽  
Author(s):  
Behzad Zeynizadeh ◽  
Saiedeh Yahyaei
Keyword(s):  
Room Temperature ◽  
Ultrasound Irradiation ◽  
Allylic Alcohols ◽  
Reduction Reactions ◽  
Vicinal Diols

A variety of conjugated enones are reduced regioselectively to their corresponding allylic alcohols with NaBH4 under ultrasound irradiation. Reduction reactions were performed in THF at room temperature and the product alcohols were obtained in high to excellent yields. This system is also efficient for the reduction of α-diketones and acyloins to vicinal diols.

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

scholarly journals Regioselective and Chemoselective Reduction of α,β-Unsaturated Carbonyl Compounds by NaBH4/Ba(OAc)2 as a Reducing System

2013 ◽  
Vol 2013 ◽  
pp. 1-5 ◽  
Author(s):  
Mina Mohamadi ◽  
Davood Setamdideh ◽  
Behrooz Khezri
Keyword(s):  
Carbonyl Compounds ◽  
Room Temperature ◽  
Allylic Alcohols ◽  
Unsaturated Aldehydes ◽  
Aldehydes And Ketones

α,β-unsaturated aldehydes and ketones are regioselectively reduced to the corresponding allylic alcohols with NaBH4/Ba(OAc)2 system in CH3CN. This system is also efficient for the chemoselective reduction of enals in the presence of enones at room temperature.

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.

A facile room temperature chemical transformation approach for binder-free thin film formation of Ag2Te and lithiation/delithiation chemistry of the film

2016 ◽  
Vol 45 (43) ◽  
pp. 17312-17318 ◽  
Author(s):  
Eun-Kyung Kim ◽  
Dasom Park ◽  
Nabeen K. Shrestha ◽  
Jinho Chang ◽  
Cheol-Woo Yi ◽  
...  
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
Aqueous Solution ◽  
Ion Exchange ◽  
Chemical Transformation ◽  
Room Temperature ◽  
Film Formation ◽  
Synthetic Method ◽  
Binder Free ◽  
Thin Film Formation

An aqueous solution based synthetic method for binder-free Ag2Te thin films using ion exchange induced chemical transformation of Ag/AgxO thin films.

Cholinium-amino acid based ionic liquids: a new method of synthesis and physico-chemical characterization

2015 ◽  
Vol 17 (32) ◽  
pp. 20687-20698 ◽  
Author(s):  
Serena De Santis ◽  
Giancarlo Masci ◽  
Francesco Casciotta ◽  
Ruggero Caminiti ◽  
Eleonora Scarpellini ◽  
...  
Keyword(s):  
Ionic Liquids ◽  
Amino Acid ◽  
Room Temperature ◽  
Chemical Characterization ◽  
New Method ◽  
Room Temperature Ionic Liquids ◽  
Synthetic Method ◽  
Chemical Structures ◽  
Physico Chemical ◽  
Wide Range

Fourteen cholinium-amino acid based room temperature ionic liquids were prepared using a cleaner synthetic method. Chemicophysical properties were well correlated with the wide range of amino acid chemical structures.

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