Enzyme mediated silicon–oxygen bond formation; the use of Rhizopus oryzae lipase, lysozyme and phytase under mild conditions

2010 ◽  
Vol 39 (39) ◽  
pp. 9361 ◽  
Author(s):  
Vincenzo Abbate ◽  
Alan R. Bassindale ◽  
Kurt F. Brandstadt ◽  
Rachel Lawson ◽  
Peter G. Taylor
Keyword(s):  
Rhizopus Oryzae ◽  
Bond Formation ◽  
Rhizopus Oryzae Lipase ◽  
Mild Conditions ◽  
Oxygen Bond ◽  
Silicon Oxygen

Amine catalysed silicon–oxygen bond formation

2005 ◽  
Vol 8 (12) ◽  
pp. 1082-1084 ◽  
Author(s):  
Kaustavmoni Deka ◽  
Rupam Jyoti Sarma ◽  
Jubaraj B. Baruah
Keyword(s):  
Bond Formation ◽  
Oxygen Bond ◽  
Silicon Oxygen

A large scale enzyme screen in the search for new methods of silicon–oxygen bond formation

2011 ◽  
Vol 105 (2) ◽  
pp. 268-275 ◽  
Author(s):  
Vincenzo Abbate ◽  
Alan R. Bassindale ◽  
Kurt F. Brandstadt ◽  
Peter G. Taylor
Keyword(s):  
Large Scale ◽  
Bond Formation ◽  
New Methods ◽  
Oxygen Bond ◽  
Silicon Oxygen

Skeletal Rearrangements of Deprotonated Organosilanes in the Gas Phase. Silicon-Oxygen Bond Formation

1990 ◽  
Vol 43 (3) ◽  
pp. 511 ◽  
Author(s):  
KM Downard ◽  
JH Bowie ◽  
RN Hayes
Keyword(s):  
Carboxylic Acid ◽  
Gas Phase ◽  
Collisional Activation ◽  
Bond Formation ◽  
Rearrangement Reactions ◽  
Skeletal Rearrangements ◽  
Oxygen Bond ◽  
Silicon Oxygen

Trimethylsilyl anions containing additional alkoxy, ketone or carboxylic acid funtionality undergo a variety of rearrangement reactions upon collisional activation. The most common are those which involve production of Si -O bonds, either by formation of Me3SiO- or by elimination of Me3SiOH.

Formation of Carbon-Oxygen Bond Mediated by Hypervalent Iodine Reagents Under Metal-free Conditions

2020 ◽  
Vol 17 ◽  
Author(s):  
Ayesha Jalil ◽  
Yaxin O Yang ◽  
Zhendong Chen ◽  
Rongxuan Jia ◽  
Tianhao Bi ◽  
...  
Keyword(s):  
Natural Products ◽  
Bond Formation ◽  
Building Blocks ◽  
Review Article ◽  
Hypervalent Iodine ◽  
Metal Free ◽  
Bioactive Natural Products ◽  
The Past ◽  
Oxygen Bond ◽  
Privileged Scaffolds

: Hypervalent iodine reagents are a class of non-metallic oxidants have been widely used in the construction of several sorts of bond formations. This surging interest in hypervalent iodine reagents is essentially due to their very useful oxidizing properties, combined with their benign environmental character and commercial availability from the past few decades ago. Furthermore, these hypervalent iodine reagents have been used in the construction of many significant building blocks and privileged scaffolds of bioactive natural products. The purpose of writing this review article is to explore all the transformations in which carbon-oxygen bond formation occurred by using hypervalent iodine reagents under metal-free conditions

scholarly journals Continuous-Flow Processes for the Production of Floxacin Intermediates: Efficient C–C Bond Formation through a Rapid and Strong Activation of Carboxylic Acids

2020 ◽  
Vol 02 (03) ◽  
pp. e128-e132
Author(s):  
Shao-Zheng Guo ◽  
Zhi-Qun Yu ◽  
Wei-Ke Su
Keyword(s):  
Reaction Time ◽  
Continuous Flow ◽  
Flow System ◽  
Bond Formation ◽  
Product Yield ◽  
Raw Material ◽  
Material Consumption ◽  
Tank Reactor ◽  
Mild Conditions ◽  
Flow Processes

AbstractThe development of highly efficient C–C bond formation methods for the synthesis of ethyl 2-(2,4-dichloro-5-fluorobenzoyl)-3-(dimethylamino)acrylate 1 in continuous flow processes has been described, which is based on the concept of rapid and efficient activation of carboxylic acid. 2,4-Dichloro-5-fluorobenzoic acid is rapidly converted into highly reactive 2,4-dichloro-5-fluorobenzoyl chloride by treating with inexpensive and less-toxic solid bis(trichloromethyl)carbonate. And then it rapidly reacts with ethyl 3-(dimethylamino)acrylate to afford the desired 1. This process can be performed under mild conditions. Compared with the traditional tank reactor process, less raw material consumption, higher product yield, less reaction time, higher operation safety ensured by more the environmentally friendly procedure, and process continuity are achieved in the continuous-flow system.

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