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83887-62-1

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83887-62-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 83887-62-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,3,8,8 and 7 respectively; the second part has 2 digits, 6 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 83887-62:
(7*8)+(6*3)+(5*8)+(4*8)+(3*7)+(2*6)+(1*2)=181
181 % 10 = 1
So 83887-62-1 is a valid CAS Registry Number.

83887-62-1Relevant articles and documents

Decarboxylation with Carbon Monoxide: The Direct Conversion of Carboxylic Acids into Potent Acid Triflate Electrophiles

Kinney, R. Garrison,Arndtsen, Bruce A.

supporting information, p. 5085 - 5089 (2019/04/01)

We report a new strategy for the conversion of carboxylic acids into potent acid triflate electrophiles. The reaction involves oxidative carbonylation of carboxylic acids with I2 in the presence of AgOTf, and is postulated to proceed via acyl hypoiodites that react with CO to form acid triflates. Coupling this chemistry with subsequent trapping with arenes offers a mild, room temperature approach to generate ketones directly from broadly available carboxylic acids without the use of corrosive and reactive Lewis or Bronsted acid additives, and instead from compounds that are readily available, stable, and functional group compatible.

Palladium-catalyzed borylation of aryl mesylates and tosylates and their applications in one-pot sequential suzuki-miyaura biaryl synthesis

Chow, Wing Kin,So, Chau Ming,Lau, Chak Po,Kwong, Fuk Yee

supporting information; experimental part, p. 6913 - 6917 (2011/08/03)

Top of the one-pots! The first palladium-catalyzed borylation of aryl tosylates and mesylates is described. The reaction conditions are mild and provide excellent functional-group compatibility (e.g., R=CN, CHO, COOMe, C(O)R, NH2, or NH-indole; see scheme). Pd/MeO-CM-phos allows one-pot sequential reactions in the preparation of unsymmetrical biaryls. Copyright

A mild and efficient palladium-catalyzed cyanation of aryl mesylates in water or tBuOH/water

Yeung, Pui Yee,So, Chau Ming,Lau, Chak Po,Kwong, Fuk Yee

supporting information; experimental part, p. 8918 - 8922 (2011/02/24)

Cool and compatible: Aryl mesylates and tosylates underwent palladium-catalyzed cyanation under mild, aqueous conditions at 65-80°C (see scheme). In many cases, water could be used as the reaction medium without a cosolvent, and a variety of substituents R, such as keto, aldehyde, ester, free amine, and nitrile groups, remained intact during the transformation. Cy=cyclohexyl, Ms=methanesulfonyl, Ts=p-toluenesulfonyl.

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