209982-56-9 Usage
Preparation
The preparation of 2-Ethyl-2-adamantyl methacrylate is as follows:Add 2175ml of n-hexane to the 3L four-necked flask equipped with stirring paddle, condenser tube and thermometer, turn on stirring, add 97g of 2-ethyladamantanol to the system, and slowly add 0.0072g of polymerization inhibitor tetrachlorobenzoquinone to the reaction system , add 72.5g of basic ion exchange resin, adjust pH=7-8, cool down to -10°C, slowly add 72.5g of vinyl methacrylate dropwise to the reaction system, keep the reaction for 6h, monitor the reaction progress, take a sample to detect the reaction is complete After adding 800 ml of water to the reaction system, stirring and extracting the phases, the organic phase was dried, concentrated under reduced pressure and evaporated to dryness to obtain 125 g of 2-ethyl-2-adamantyl methacrylate product with a yield of 93.45%.
Check Digit Verification of cas no
The CAS Registry Mumber 209982-56-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,9,9,8 and 2 respectively; the second part has 2 digits, 5 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 209982-56:
(8*2)+(7*0)+(6*9)+(5*9)+(4*8)+(3*2)+(2*5)+(1*6)=169
169 % 10 = 9
So 209982-56-9 is a valid CAS Registry Number.
InChI:InChI=1/C16H24O2/c1-4-16(18-15(17)10(2)3)13-6-11-5-12(8-13)9-14(16)7-11/h11-14H,2,4-9H2,1,3H3
209982-56-9Relevant articles and documents
Process for preparation of high-purity organic compounds
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, (2008/06/13)
There is provided a method for obtaining a target organic compound such as an alkyladamantyl ester efficiently by purifying a crude organic compound which contains, as impurities, sublimable materials which start to sublime at temperatures lower than a boiling point of the target organic compound by use of such a simple method as distillation during its production process, without being adversely affected by adherence of the sublimable materials. The distillation is carried out in the presence of a compound having a boiling point which is lower than a boiling point of the target organic compound, e.g., a carbonyl-group-containing compound. For example, 2-methyl-2-adamantyl methacrylate (boiling point: 92° C./0.3 mmHg) containing sublimable impurities such as adamantane (sublimation starting temperature: room temperature or lower) is distilled in the presence of 1,3-dimethyl-2-imidazolidinone (boiling point: 225° C.).
