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18758-56-0

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18758-56-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 18758-56-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,8,7,5 and 8 respectively; the second part has 2 digits, 5 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 18758-56:
(7*1)+(6*8)+(5*7)+(4*5)+(3*8)+(2*5)+(1*6)=150
150 % 10 = 0
So 18758-56-0 is a valid CAS Registry Number.

18758-56-0Relevant articles and documents

Mild synthesis of silyl ethers: Via potassium carbonate catalyzed reactions between alcohols and hydrosilanes

Delucia, Nicholas A.,Das, Nivedita,Vannucci, Aaron K.

, p. 3415 - 3418 (2018/05/23)

A method has been developed for the silanolysis of alcohols using an abundant and non-corrosive base K2CO3 as a catalyst. Reactions between a variety of alcohols and hydrosilanes generate silyl ethers under mild conditions. The use of hydrosilanes leads to the formation of H2 as the only byproduct thus avoiding the formation of stoichiometric strong acids. The mild conditions lead to a wide scope of possible alcohol substrates and good functional group tolerance. Selective alcohol silanolysis is also observed in the presence of reactive C-H bonds, lending this method for extensive use in protection group chemistry.

Metal-Free Ammonium Iodide Catalyzed Oxidative Dehydrocoupling of Silanes with Alcohols

Yuan, Yan-Qin,Kumar, Pailla Santhosh,Guo, Sheng-Rong

supporting information, p. 1620 - 1623 (2017/08/11)

An ammonium iodide catalyzed direct oxidative coupling of silanes with alcohols to give various alkoxysilane derivatives was discovered. tert -Butyl hydroperoxide proved to be an efficient oxidant for this transformation. Attractive features of this protocol include its transition-metal-free nature and the mild reaction conditions.

N-heterocyclic carbene organocatalysts for dehydrogenative coupling of silanes and hydroxyl compounds

Gao, Dongjing,Cui, Chunming

supporting information, p. 11143 - 11147 (2013/09/02)

Go organic! N-Heterocyclic carbene (NHC) 1,3-diisopropyl-4,5- dimethylimidazol-2-ylidene (IiPr) has been found to be an efficient and selective catalyst for the dehydrogenative coupling of a wide range of silanes and hydroxyl groups to form Si-O bonds under mild and solvent-free conditions (see scheme). Mechanistic studies indicated that the activation of hydroxyl groups by the NHC is the most plausible initial step for the process. Copyright

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