2-[4',5'-trans-dihydro-4-methyl-3-(2,4,6-trimethylphenyl)isoxazol-5-yl]-1-ethyl-5,5-dimethylpyrazolidine-3-one

Base Information

• Chemical Name: 2-[4',5'-trans-dihydro-4-methyl-3-(2,4,6-trimethylphenyl)isoxazol-5-yl]-1-ethyl-5,5-dimethylpyrazolidine-3-one
• CAS No.: 701208-96-0
• Molecular Formula: C₂₁H₂₉N₃O₃
• Molecular Weight: 371.48
• Mol file: 701208-96-0.mol

Synonyms:2-[4',5'-trans-dihydro-4-methyl-3-(2,4,6-trimethylphenyl)isoxazol-5-yl]-1-ethyl-5,5-dimethylpyrazolidine-3-one

Chemical Property of 2-[4',5'-trans-dihydro-4-methyl-3-(2,4,6-trimethylphenyl)isoxazol-5-yl]-1-ethyl-5,5-dimethylpyrazolidine-3-one

Chemical Property:

Purity/Quality:

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

Useful:

Technology Process of 2-[4',5'-trans-dihydro-4-methyl-3-(2,4,6-trimethylphenyl)isoxazol-5-yl]-1-ethyl-5,5-dimethylpyrazolidine-3-one

There total 3 articles about 2-[4',5'-trans-dihydro-4-methyl-3-(2,4,6-trimethylphenyl)isoxazol-5-yl]-1-ethyl-5,5-dimethylpyrazolidine-3-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:

mesitylenecarbonitrile oxide (2904-57-6) + 2-[(E)-2-butenoyl]-1-ethyl-5,5-dimethyl-pyrazolidin-3-one (365456-23-1) → 2-[4',5'-trans-dihydro-4-methyl-3-(2,4,6-trimethylphenyl)isoxazol-5-yl]-1-ethyl-5,5-dimethylpyrazolidine-3-one + 2-[4',5'-trans-dihydro-4-methyl-3-(2,4,6-trimethylphenyl)isoxazol-5-yl]-1-ethyl-5,5-dimethylpyrazolidine-3-one (701208-96-0)

Guidance literature:

With 4 A molecular sieve; chiral amino indanol derivative; magnesium iodide; In dichloromethane; at 20 ℃; for 18h; Title compound not separated from byproducts;

DOI:10.1021/ja0318636

Reference yield:

5,5-dimethylpyrazolidin-3-one (42953-82-2) → 2-[4',5'-trans-dihydro-4-methyl-3-(2,4,6-trimethylphenyl)isoxazol-5-yl]-1-ethyl-5,5-dimethylpyrazolidine-3-one (701208-96-0)

Guidance literature:

Multi-step reaction with 3 steps

1.1: methanol / 1 h / 0 - 20 °C

1.2: 92 percent / NaBH₄ / methanol / 0 - 20 °C

2.1: n-BuLi / tetrahydrofuran / 0.5 h / -78 °C

2.2: 93 percent / tetrahydrofuran / -78 °C

3.1: MgI₂; chiral amino indanol derivative; 4A molecular sieves / CH₂Cl₂ / 18 h / 20 °C

With n-butyllithium; 4 A molecular sieve; chiral amino indanol derivative; magnesium iodide; In tetrahydrofuran; methanol; dichloromethane;

DOI:10.1021/ja0318636

Reference yield:

1-ethyl-5,5-dimethyl-pyrazolidin-3-one (26485-97-2) → 2-[4',5'-trans-dihydro-4-methyl-3-(2,4,6-trimethylphenyl)isoxazol-5-yl]-1-ethyl-5,5-dimethylpyrazolidine-3-one (701208-96-0)

Guidance literature:

Multi-step reaction with 2 steps

1.1: n-BuLi / tetrahydrofuran / 0.5 h / -78 °C

1.2: 93 percent / tetrahydrofuran / -78 °C

2.1: MgI₂; chiral amino indanol derivative; 4A molecular sieves / CH₂Cl₂ / 18 h / 20 °C

With n-butyllithium; 4 A molecular sieve; chiral amino indanol derivative; magnesium iodide; In tetrahydrofuran; dichloromethane;

DOI:10.1021/ja0318636

upstream raw materials:

mesitylenecarbonitrile oxide

2-[(E)-2-butenoyl]-1-ethyl-5,5-dimethyl-pyrazolidin-3-one

5,5-dimethylpyrazolidin-3-one

1-ethyl-5,5-dimethyl-pyrazolidin-3-one