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1450899-58-7

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1450899-58-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1450899-58-7 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,4,5,0,8,9 and 9 respectively; the second part has 2 digits, 5 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 1450899-58:
(9*1)+(8*4)+(7*5)+(6*0)+(5*8)+(4*9)+(3*9)+(2*5)+(1*8)=197
197 % 10 = 7
So 1450899-58-7 is a valid CAS Registry Number.

1450899-58-7Downstream Products

1450899-58-7Relevant articles and documents

Stereoselective or exclusive synthesis of ethyl (Z)-2-(2-substituted- thiazol-4-yl)pent-2-enoates from ethyl (E/Z)-2-(2-bromoacetyl)pent-2-enoate

Zhai, Jiao-Jiao,Jiang, Jian-An,Zhang, Shun-Li,Chen, Cheng,Liu, Hong-Wei,Liao, Dao-Hua,Ji, Ya-Fei

supporting information, p. 1399 - 1404 (2013/07/26)

A stereoselective or exclusive approach to a series of ethyl (Z)-2-(2-substituted-thiazol-4-yl)pent-2-enoates from ethyl (E/Z)-2-(2- bromoacetyl)pent-2-enoate and thioureas or thioamides was reported in good yields. This approach involves a quaternary carbon stereocontrolled cis-configuration formation, and opportunely blocking a potential E/Z isomerization. The practical applicability was highlighted by the synthesis of (Z)-2-(2-tert-butoxycarbonylaminothiazol-4-yl)pent-2-enoic acid, a commercially important side-chain material of cefcapene pivoxil, in a two-step procedure. Georg Thieme Verlag Stuttgart · New York.

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