2--2-methyl-6-<<(methylamino)carbonyl>oxy>-3-oxo-3,6-dihydro-2H-pyran

Base Information

• Chemical Name: 2--2-methyl-6-<<(methylamino)carbonyl>oxy>-3-oxo-3,6-dihydro-2H-pyran
• CAS No.: 133150-04-6
• Molecular Formula: C₂₀H₁₉NO₄S
• Molecular Weight: 369.441

Synonyms:

Chemical Property of 2--2-methyl-6-<<(methylamino)carbonyl>oxy>-3-oxo-3,6-dihydro-2H-pyran

Chemical Property:

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Technology Process of 2--2-methyl-6-<<(methylamino)carbonyl>oxy>-3-oxo-3,6-dihydro-2H-pyran

There total 1 articles about 2--2-methyl-6-<<(methylamino)carbonyl>oxy>-3-oxo-3,6-dihydro-2H-pyran 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: 7.8%

6-hydroxy-2--2-methyl-2H-pyran-3(6H)-one (102285-67-6) + methyl isocyanate (624-83-9) → 2--2-methyl-6-<<(methylamino)carbonyl>oxy>-3-oxo-3,6-dihydro-2H-pyran (133150-04-6,145371-47-7) + 1,5-dimethyl-5-<4-(phenylthio)phenyl>-dihydro<1H,7H>-5H-pyrano<3,2-d>oxazole-2,6-dione (133150-03-5)

Guidance literature:

With triethylamine; In diethyl ether; for 3h; Ambient temperature;

DOI:10.1002/jps.2600811117

Reference yield: 95.0%

2--2-methyl-6-<<(methylamino)carbonyl>oxy>-3-oxo-3,6-dihydro-2H-pyran (133150-04-6,145371-47-7) → 1,5-dimethyl-5-<4-(phenylthio)phenyl>-dihydro<1H,7H>-5H-pyrano<3,2-d>oxazole-2,6-dione (133150-03-5)

Guidance literature:

With sodium carbonate; at 5 ℃; for 0.25h;

Reference yield: 80.0%

methanol (67-56-1) + 2--2-methyl-6-<<(methylamino)carbonyl>oxy>-3-oxo-3,6-dihydro-2H-pyran (133150-04-6,145371-47-7) → cis-6-methoxy-2--2-methyl-2H-pyran-3(6H)-one (102285-72-3)

Guidance literature:

With perchloric acid; for 1h; Ambient temperature;

DOI:10.1002/jps.2600811117

upstream raw materials:

6-hydroxy-2--2-methyl-2H-pyran-3(6H)-one

methyl isocyanate

Downstream raw materials:

cis-6-methoxy-2--2-methyl-2H-pyran-3(6H)-one

1,5-dimethyl-5-<4-(phenylthio)phenyl>-dihydro<1H,7H>-5H-pyrano<3,2-d>oxazole-2,6-dione

1,5-dimethyl-5-<4-(phenylthio)phenyl>-6-hydroxyperhydropyrano<3,2-d>oxazole-2-one

1,5-dimethyl-5<4-(phenylthio)phenyl>perhydropyrano<3,2-d>oxazole-2,6-dione-6-oxime

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