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138665-22-2

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138665-22-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 138665-22-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,8,6,6 and 5 respectively; the second part has 2 digits, 2 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 138665-22:
(8*1)+(7*3)+(6*8)+(5*6)+(4*6)+(3*5)+(2*2)+(1*2)=152
152 % 10 = 2
So 138665-22-2 is a valid CAS Registry Number.

138665-22-2Relevant articles and documents

Highly regioselective ring-opening of epoxides with amines: A metal- A nd solvent-free protocol for the synthesis of β-amino alcohols

Li, Dong,Wang, Jing,Yu, Shibo,Ye, Silei,Zou, Wenjie,Zhang, Hongbin,Chen, Jingbo

supporting information, p. 2256 - 2259 (2020/03/04)

We herein report a metal- A nd solvent-free acetic acid-mediated ring-opening reaction of epoxides with amines. This process provides β-amino alcohols in high yields with excellent regioselectivity. Importantly, this epoxide ring-opening protocol can be used for the introduction of amines in natural products during late-stage transformations.

Synthesis of chiral allyltitaniums having an amino group at the C-4 position and their diastereoselective addition reaction with aldehydes

Teng, Xin,Kasatkin, Aleksandr,Kawanaka, Yasufumi,Okamoto, Sentaro,Sato, Fumie

, p. 8977 - 8980 (2007/10/03)

Chiral allyltitaniums having an amino substituent at the C-4 position are prepared from optically active allylic alcohol derivatives 1 and Ti(O-i-Pr)4/2i-PrMgCl reagent, which, in turn, react with aldehydes regio- and stereoselectively to afford 3-amino-2-vinylalkanols in excellent yields.

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