dimethyl 2-(but-2-ynyl)-2-[(5,6-dihydro-4H-pyran-2-yl)(phenyl)methyl]malonate

Base Information

Chemical Name:dimethyl 2-(but-2-ynyl)-2-[(5,6-dihydro-4H-pyran-2-yl)(phenyl)methyl]malonate
CAS No.:944478-87-9
Molecular Formula:C₂₁H₂₄O₅
Molecular Weight:356.419
Hs Code.:

Synonyms:dimethyl 2-(but-2-ynyl)-2-[(5,6-dihydro-4H-pyran-2-yl)(phenyl)methyl]malonate

Suppliers and Price of dimethyl 2-(but-2-ynyl)-2-[(5,6-dihydro-4H-pyran-2-yl)(phenyl)methyl]malonate

Supply Marketing:

Business phase:: The product has achieved commercial mass production^*data from LookChem market partment

Manufacturers and distributors:

Manufacture/Brand
Chemicals and raw materials
Packaging
price

Total 0 raw suppliers

Chemical Property of dimethyl 2-(but-2-ynyl)-2-[(5,6-dihydro-4H-pyran-2-yl)(phenyl)methyl]malonate

Chemical Property:

Purity/Quality:

Safty Information:

Pictogram(s):
Hazard Codes:

MSDS Files:

Useful:

Technology Process of dimethyl 2-(but-2-ynyl)-2-[(5,6-dihydro-4H-pyran-2-yl)(phenyl)methyl]malonate

There total 3 articles about dimethyl 2-(but-2-ynyl)-2-[(5,6-dihydro-4H-pyran-2-yl)(phenyl)methyl]malonate 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: 80.0%

: 944478-75-5
dimethyl 2-[(5,6-dihydro-4H-pyran-2-yl)(phenyl)methyl]malonate

: 3355-28-0
1-Bromo-2-butyne

: 944478-87-9
dimethyl 2-(but-2-ynyl)-2-[(5,6-dihydro-4H-pyran-2-yl)(phenyl)methyl]malonate

Guidance literature:: dimethyl 2-[(5,6-dihydro-4H-pyran-2-yl)(phenyl)methyl]malonate; With sodium hydride; In N,N-dimethyl-formamide; at 0 ℃; for 0.0833333h;

1-Bromo-2-butyne; In N,N-dimethyl-formamide; at 20 ℃; for 3h; Further stages.;
DOI:10.1016/j.tet.2007.02.122

Reference yield:

: 944478-73-3
(5,6-dihydro-4H-pyran-2-yl)(phenyl)methyl acetate

: 944478-87-9
dimethyl 2-(but-2-ynyl)-2-[(5,6-dihydro-4H-pyran-2-yl)(phenyl)methyl]malonate

Guidance literature:: Multi-step reaction with 2 steps

1.1: NaH / tetrahydrofuran / 0.33 h

1.2: 18 percent / triphenylphosphine / Pd(PPh₃)4 / tetrahydrofuran / 72 h / Heating

2.1: NaH / dimethylformamide / 0.08 h / 0 °C

2.2: 80 percent / dimethylformamide / 3 h / 20 °C

With sodium hydride; In tetrahydrofuran; N,N-dimethyl-formamide;
DOI:10.1016/j.tet.2007.02.122

Reference yield:

: 72081-21-1
(5,6-dihydro-4H-pyran-2-yl)(phenyl)methanol

: 944478-87-9
dimethyl 2-(but-2-ynyl)-2-[(5,6-dihydro-4H-pyran-2-yl)(phenyl)methyl]malonate

Guidance literature:: Multi-step reaction with 3 steps

1.1: 88 percent / DMAP; DIPEA / CH₂Cl₂ / 4 h / 23 °C

2.1: NaH / tetrahydrofuran / 0.33 h

2.2: 18 percent / triphenylphosphine / Pd(PPh₃)4 / tetrahydrofuran / 72 h / Heating

3.1: NaH / dimethylformamide / 0.08 h / 0 °C

3.2: 80 percent / dimethylformamide / 3 h / 20 °C

With dmap; sodium hydride; N-ethyl-N,N-diisopropylamine; In tetrahydrofuran; dichloromethane; N,N-dimethyl-formamide;
DOI:10.1016/j.tet.2007.02.122