5-mesityl-2-(1-(methylsulfonyloxy)propan-2-yl)-6-oxo-3,6-dihydro-2H-pyran-4-yl pivalate

Base Information

Chemical Name:5-mesityl-2-(1-(methylsulfonyloxy)propan-2-yl)-6-oxo-3,6-dihydro-2H-pyran-4-yl pivalate
CAS No.:1612831-51-2
Molecular Formula:C₂₃H₃₂O₇S
Molecular Weight:452.569
Hs Code.:

Synonyms:5-mesityl-2-(1-(methylsulfonyloxy)propan-2-yl)-6-oxo-3,6-dihydro-2H-pyran-4-yl pivalate

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Chemical Property of 5-mesityl-2-(1-(methylsulfonyloxy)propan-2-yl)-6-oxo-3,6-dihydro-2H-pyran-4-yl pivalate

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Technology Process of 5-mesityl-2-(1-(methylsulfonyloxy)propan-2-yl)-6-oxo-3,6-dihydro-2H-pyran-4-yl pivalate

There total 6 articles about 5-mesityl-2-(1-(methylsulfonyloxy)propan-2-yl)-6-oxo-3,6-dihydro-2H-pyran-4-yl pivalate 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:

: 1612831-50-1
2-(1-hydroxypropan-2-yl)-5-mesityl-6-oxo-3,6-dihydro-2H-pyran-4-yl pivalate

: 124-63-0
methanesulfonyl chloride

: 1612831-51-2
5-mesityl-2-(1-(methylsulfonyloxy)propan-2-yl)-6-oxo-3,6-dihydro-2H-pyran-4-yl pivalate

Guidance literature:: With triethylamine; In tetrahydrofuran; at 0 ℃; for 2h;

Reference yield:

: 41841-19-4
methyl 2-mesitylacetate

: 1612831-51-2
5-mesityl-2-(1-(methylsulfonyloxy)propan-2-yl)-6-oxo-3,6-dihydro-2H-pyran-4-yl pivalate

Guidance literature:: Multi-step reaction with 6 steps

1.1: lithium diisopropyl amide / tetrahydrofuran / 0.5 h / -78 °C

1.2: 7 h / -78 - 30 °C

2.1: sodium hydride / tetrahydrofuran / 0.5 h / 0 °C

2.2: 0.5 h / -40 °C

2.3: 0.83 h / -40 °C

3.1: neat (no solvent) / 3 h / 150 °C

4.1: pyridine / 18 h / 10 - 30 °C

5.1: palladium 10% on activated carbon; hydrogen / ethanol / 18 h / 1034.32 Torr

6.1: triethylamine / tetrahydrofuran / 2 h / 0 °C

With palladium 10% on activated carbon; hydrogen; sodium hydride; triethylamine; lithium diisopropyl amide; In tetrahydrofuran; pyridine; ethanol;

Reference yield:

: 1612831-46-5
methyl 2-mesityl-3-oxobutanoate

: 1612831-51-2
5-mesityl-2-(1-(methylsulfonyloxy)propan-2-yl)-6-oxo-3,6-dihydro-2H-pyran-4-yl pivalate

Guidance literature:: Multi-step reaction with 5 steps

1.1: sodium hydride / tetrahydrofuran / 0.5 h / 0 °C

1.2: 0.5 h / -40 °C

1.3: 0.83 h / -40 °C

2.1: neat (no solvent) / 3 h / 150 °C

3.1: pyridine / 18 h / 10 - 30 °C

4.1: palladium 10% on activated carbon; hydrogen / ethanol / 18 h / 1034.32 Torr

5.1: triethylamine / tetrahydrofuran / 2 h / 0 °C

With palladium 10% on activated carbon; hydrogen; sodium hydride; triethylamine; In tetrahydrofuran; pyridine; ethanol;