trans-3-(2-methyl-2-propenyl)-4--3,4,5,6-tetrahydropyran-2-one

Base Information

• Chemical Name: trans-3-(2-methyl-2-propenyl)-4--3,4,5,6-tetrahydropyran-2-one
• CAS No.: 125846-84-6
• Molecular Formula: C₂₈H₂₈O₂S₃
• Molecular Weight: 492.727
• Mol file: 125846-84-6.mol

Synonyms:trans-3-(2-methyl-2-propenyl)-4--3,4,5,6-tetrahydropyran-2-one

Chemical Property of trans-3-(2-methyl-2-propenyl)-4--3,4,5,6-tetrahydropyran-2-one

Chemical Property:

Purity/Quality:

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

Useful:

Technology Process of trans-3-(2-methyl-2-propenyl)-4--3,4,5,6-tetrahydropyran-2-one

There total 1 articles about trans-3-(2-methyl-2-propenyl)-4--3,4,5,6-tetrahydropyran-2-one which guide to synthetic route it. The literature collected by LookChem mainly comes from the sharing of users and the free literature resources found by Internet computing technology. We keep the original model of the professional version of literature to make it easier and faster for users to retrieve and use. At the same time, we analyze and calculate the most feasible synthesis route with the highest yield for your reference as below:

synthetic route:

Reference yield:

5,6-dihydro-pyran-2-one (3393-45-1) + 2-methyl-3-bromo-1-propene (1458-98-6) + tris(phenylthio)methane (4832-52-4) → trans-3-(2-methyl-2-propenyl)-4--3,4,5,6-tetrahydropyran-2-one (125846-84-6)

Guidance literature:

Yield given. Multistep reaction;

DOI:10.1021/jo00294a029

Reference yield: 94.0%

trans-3-(2-methyl-2-propenyl)-4--3,4,5,6-tetrahydropyran-2-one (125846-84-6) → 4-methyl-6,6-bis(phenylthio)-3,6,9,10-tetrahydroisochroman-1-one (125846-85-7)

Guidance literature:

With silver trifluoromethanesulfonate; In tetrahydrofuran; at 0 ℃; for 0.166667h;

DOI:10.1021/jo00294a029

Reference yield: 73.0%

trans-3-(2-methyl-2-propenyl)-4--3,4,5,6-tetrahydropyran-2-one (125846-84-6) → 4-methyl-6-(phenylthio)-7,8-dihydroisochroman-1-one (125846-90-4)

Guidance literature:

With silver trifluoromethanesulfonate; In tetrahydrofuran; 1. 10 min, 0 deg C 2. 10 min, room temperature;

DOI:10.1021/jo00294a029

upstream raw materials:

5,6-dihydro-pyran-2-one

2-methyl-3-bromo-1-propene

tris(phenylthio)methane

Downstream raw materials:

4-methyl-6-(phenylthio)-7,8-dihydroisochroman-1-one

4-methyl-6,6-bis(phenylthio)-3,6,9,10-tetrahydroisochroman-1-one