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861821-86-5

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861821-86-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 861821-86-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,6,1,8,2 and 1 respectively; the second part has 2 digits, 8 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 861821-86:
(8*8)+(7*6)+(6*1)+(5*8)+(4*2)+(3*1)+(2*8)+(1*6)=185
185 % 10 = 5
So 861821-86-5 is a valid CAS Registry Number.

861821-86-5Relevant articles and documents

Practical and highly stereoselective technology for preparation of enantiopure sulfoxides and sulfinamides utilizing activated and functionally differentiated N-sulfonyl-1,2,3-oxathiazolidine-2-oxide derivatives

Han, Zhengxu,Krishnamurthy, Dhileepkumar,Grover, Paul,Fang, Q. Kevin,Su, Xiping,Wilkinson, H. Scott,Lu, Zhi-Hui,Magiera, Daniel,Senanayake, Chris H.

, p. 6386 - 6408 (2007/10/03)

A simple, general, and practical technology to prepare enantiopure 1,2,3-oxathiazolidine-2-oxide derivatives using chiral aryl N-sulfonyl aminoalcohol derivatives and thionyl chloride is reported. The versatility of these novel chiral building blocks (MIOO and TMPOO), was exemplified by the expedient production of a variety of unique chiral sulfoxides and valuable chiral sulfinamides in excellent yields and enantiopurities.

Properly designed modular asymmetric synthesis for enantiopure sulfinamide auxiliaries from N-sulfonyl-1,2,3-oxathiazolidine-2-oxide agents

Han, Zhengxu,Krishnamurthy, Dhileepkumar,Grover, Paul,Fang, Q. Kevin,Senanayake, Chris H.

, p. 7880 - 7881 (2007/10/03)

Simple and practical asymmetric synthesis of functionally differentiated aminoindanol based endo-N-sulfonyl 1,2,3-oxathiazolidine-2-oxide as sulfinyl transfer agents are developed. The importance of these new and unique sulfinyl transfer reagents are exemplified by the expedient production of several sulfinamide ligands, including either enantiomer of (R)-tert-butanesulfinamide in excellent yields and enantiopurities. Copyright

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