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1-(5,6-Dihydro-4H-pyran-2-yl)-1-phenyl-ethanol is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

74938-45-7

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74938-45-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 74938-45-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,4,9,3 and 8 respectively; the second part has 2 digits, 4 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 74938-45:
(7*7)+(6*4)+(5*9)+(4*3)+(3*8)+(2*4)+(1*5)=167
167 % 10 = 7
So 74938-45-7 is a valid CAS Registry Number.

74938-45-7Relevant academic research and scientific papers

ALKYLATION REACTIONS OF ANIONS DERIVED FROM 2-BENZENESULPHONYL TETRAHYDROPYRAN AND THEIR APPLICATION TO SPIROKETAL SYNTHESIS

Ley, Steven V.,Lygo, Barry,Sternfeld, Francine,Wonnacott, Anne

, p. 4333 - 4342 (1986)

Reaction of 3,4-dihydro-2H-pyran or 2-methoxytetrahydropyran with benzenesulphinic acid gave 2-benzenesulphonyl tetrahydropyran (1).Deprotonation of (1) followed by alkylation with carbonyl compounds or halides gave cyclic enol ether addition products by

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