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66869-82-7

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66869-82-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 66869-82-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,6,8,6 and 9 respectively; the second part has 2 digits, 8 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 66869-82:
(7*6)+(6*6)+(5*8)+(4*6)+(3*9)+(2*8)+(1*2)=187
187 % 10 = 7
So 66869-82-7 is a valid CAS Registry Number.

66869-82-7Relevant articles and documents

Organocatalytic Enantioselective Conjugate Alkynylation of β-Aminoenones: Access to Chiral β-Alkynyl-β-Amino Carbonyl Derivatives

Mao, Bin,Meng, Xin,Wang, Jian-Fei,Yu, Chuan-Ming,Zhang, Chao-Huan

supporting information, p. 7427 - 7432 (2020/10/09)

Readily available potassium alkynyltrifluoroborates were used for organocatalytic asymmetric conjugate alkynylation of β-enaminones. The interception of a modified binaphthol catalyst and in situ generated organodifluoroboranes proved important to access functionalized β-alkynyl-β-amino carbonyls and derivatives with improved chemo-reactivity and enantio-induction. Mechanistic studies revealed the impact of molecular sieves on efficiency and stereocontrol. The products undergo additional functionalization to yield a diverse set of valuable β-alkynyl-β-amino carbonyl scaffolds.

Production of optically active aromatic compounds having nitrogen atoms in a ring structure comprising

-

Paragraph 0029-0031, (2017/08/02)

PROBLEM TO BE SOLVED: To provide a production method for obtaining an optically active aromatic compound having a cyclic structure including a nitrogen atom, in which a modified group can be removed while keeping a high yield and optical purity, with a high yield in a high enantioselective manner.SOLUTION: An aromatic compound described below is used as a substrate: in the aromatic compound, an amino group expressed by -NHR11 (where R11 is an arene sulfonyl group) is bonded to one of two carbon atoms constituting a benzene ring and adjoining to each other, and -R13-CHR15-C(=O)-Z (where R13 represents a methylene or an ethylene which may have a substituent, R15 represents a hydrogen atom, an alkyl group which may have a substituent, or a cycloalkyl group which may have a substituent, and Z represents a heteroaryl group which may have a substituent) is bonded to the other carbon atom. The substrate is made to react in a system to which N-spiro C2 axis asymmetric quaternary ammonium iodide and an oxidizing agent are supplied so as to obtain an aromatic compound having a cyclic structure including a nitrogen atom derived from the above amino group.

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