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171721-34-9

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171721-34-9 Usage

General Description

The chemical compound "(S)-2-((3-NITROPHENOXY)METHYL)OXIRANE" is a chiral epoxide with a molecular formula of C9H9NO4. It contains a nitrophenyl group and an epoxide functional group, making it an important intermediate in the synthesis of various organic compounds. The compound is commonly used as a building block in the production of pharmaceuticals, agrochemicals, and various other fine chemicals. Its chiral nature allows for the production of enantiomerically pure compounds, which is crucial in the pharmaceutical industry for ensuring the safety and efficacy of drugs. Overall, "(S)-2-((3-NITROPHENOXY)METHYL)OXIRANE" has diverse applications and is a valuable intermediate in organic synthesis.

Check Digit Verification of cas no

The CAS Registry Mumber 171721-34-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,7,1,7,2 and 1 respectively; the second part has 2 digits, 3 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 171721-34:
(8*1)+(7*7)+(6*1)+(5*7)+(4*2)+(3*1)+(2*3)+(1*4)=119
119 % 10 = 9
So 171721-34-9 is a valid CAS Registry Number.

171721-34-9Relevant articles and documents

An unusual (R)-selective epoxide hydrolase with high activity for facile preparation of enantiopure glycidyl ethers

Zhao, Jing,Chu, Yan-Yan,Li, Ai-Tao,Ju, Xin,Kong, Xu-Dong,Pan, Jiang,Tang, Yun,Xu, Jian-He

, p. 1510 - 1518 (2011/08/03)

A novel epoxide hydrolase (BMEH) with unusual (R)-enantioselectivity and very high activity was cloned from Bacillus megaterium ECU1001. Highest enantioselectivities (E>200) were achieved in the bioresolution of ortho-substituted phenyl glycidyl ethers and para-nitrostyrene oxide. Worthy of note is that the substrate structure remarkably affected the enantioselectivities of the enzyme, as a reversed (S)-enantiopreference was unexpectedly observed for the ortho-nitrophenyl glycidyl ether. As a proof-of-concept, five enantiopure epoxides (>99% ee) were obtained in high yields, and a gram-scale preparation of (S)-ortho-methylphenyl glycidyl ether was then successfully performed within a few hours, indicating that BMEH is an attractive biocatalyst for the efficient preparation of optically active epoxides. Copyright

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