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5,5-dimethyl-2-(phenylsulfonyl)tetrahydro-2H-pyran is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

1201685-89-3

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1201685-89-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1201685-89-3 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,0,1,6,8 and 5 respectively; the second part has 2 digits, 8 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 1201685-89:
(9*1)+(8*2)+(7*0)+(6*1)+(5*6)+(4*8)+(3*5)+(2*8)+(1*9)=133
133 % 10 = 3
So 1201685-89-3 is a valid CAS Registry Number.

1201685-89-3Upstream product

1201685-89-3Downstream Products

1201685-89-3Relevant academic research and scientific papers

Bronsted acid catalyzed enantioselective semipinacol rearrangement for the synthesis of chiral spiroethers

Zhang, Qing-Wei,Fan, Chun-An,Zhang, Hai-Jun,Tu, Yong-Qiang,Zhao, Yu-Ming,Gu, Peiming,Chen, Zhi-Min

, p. 8572 - 8574 (2009)

A new twist: The catalytic asymmetric semipinacol rearrangement reaction of 2oxo allylic alcohols 1 in the presence of a catalytic amount of chiral phosphoric acid (R)-2a or its silver salt (R)-2b affords enantiomerically pure spiroethers 3.

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