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2H-Pyran, tetrahydro-2-(2-propenyl)-, also known as 2-allyltetrahydro-2H-pyran, is a colorless liquid organic compound with the molecular formula C8H14O. It is a derivative of the parent compound tetrahydro-2H-pyran, which is a cyclic ether with a six-membered ring structure. The 2-allyl group in 2H-Pyran, tetrahydro-2-(2-propenyl)- is attached to the second carbon atom of the pyran ring, giving it a unique chemical structure. 2H-Pyran, tetrahydro-2-(2-propenyl)- is used as a synthetic intermediate in the preparation of various organic compounds, particularly in the synthesis of natural products and pharmaceuticals. It is also known for its potential applications in the fragrance and flavor industry due to its pleasant aroma.

4203-45-6

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4203-45-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 4203-45-6 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 4,2,0 and 3 respectively; the second part has 2 digits, 4 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 4203-45:
(6*4)+(5*2)+(4*0)+(3*3)+(2*4)+(1*5)=56
56 % 10 = 6
So 4203-45-6 is a valid CAS Registry Number.

4203-45-6Downstream Products

4203-45-6Relevant academic research and scientific papers

Bismuth(III) bromide in organic synthesis. A catalytic method for the allylation of tetrahydrofuranyl and tetrahydropyranyl ethers

Krabbe, Scott W.,Angeles, Veronica V.,Mohan, Ram S.

supporting information; experimental part, p. 5643 - 5645 (2010/11/18)

A bismuth bromide-catalyzed (10.0 mol %) multicomponent reaction involving the allylation of THF- and THP-ethers, followed by in situ derivatization with acetic anhydride to generate highly functionalized esters has been developed under solvent-free conditions. To the best of our knowledge, this is the first report of a catalytic procedure for the allylation of THF- and THP-ethers to yield ring-opened products.

REACTIONS OF ALLYLSILANES WITH α-CHLORO ETHERS CATALYZED BY IODOTRIMETHYLSILANE OR TRIMETHYLSILYL TRIFLUOROMETHANESULFONATE. SYNTHESIS OF HOMOALLYL ETHERS

Sakurai, Hideki,Sakata, Yasuyuki,Hosomi, Akira

, p. 409 - 412 (2007/10/02)

Iodotrimethylsilane and trimethylsilyl triflate activate selectively the C-Cl bond rather than the C-O bond of α-chloro ethers and catalyze the allylation with allylsilanes to give the corresponding homoallyl ether effectively in good yield.

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