Carbonic acid (2R,3S,6S)-6-(2,4-difluoro-phenylethynyl)-2-ethoxycarbonyloxymethyl-3,6-dihydro-2H-pyran-3-yl ester ethyl ester

Base Information

Chemical Name:Carbonic acid (2R,3S,6S)-6-(2,4-difluoro-phenylethynyl)-2-ethoxycarbonyloxymethyl-3,6-dihydro-2H-pyran-3-yl ester ethyl ester
CAS No.:915772-30-4
Molecular Formula:C₂₀H₂₀F₂O₇
Molecular Weight:410.371
Hs Code.:

Synonyms:Carbonic acid (2R,3S,6S)-6-(2,4-difluoro-phenylethynyl)-2-ethoxycarbonyloxymethyl-3,6-dihydro-2H-pyran-3-yl ester ethyl ester

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Chemical Property of Carbonic acid (2R,3S,6S)-6-(2,4-difluoro-phenylethynyl)-2-ethoxycarbonyloxymethyl-3,6-dihydro-2H-pyran-3-yl ester ethyl ester

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Technology Process of Carbonic acid (2R,3S,6S)-6-(2,4-difluoro-phenylethynyl)-2-ethoxycarbonyloxymethyl-3,6-dihydro-2H-pyran-3-yl ester ethyl ester

There total 4 articles about Carbonic acid (2R,3S,6S)-6-(2,4-difluoro-phenylethynyl)-2-ethoxycarbonyloxymethyl-3,6-dihydro-2H-pyran-3-yl ester ethyl ester 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:

: (2R,3S,6S)-6-(2,4-Difluoro-phenylethynyl)-2-hydroxymethyl-3,6-dihydro-2H-pyran-3-ol

: 541-41-3
chloroformic acid ethyl ester

: 915772-30-4
Carbonic acid (2R,3S,6S)-6-(2,4-difluoro-phenylethynyl)-2-ethoxycarbonyloxymethyl-3,6-dihydro-2H-pyran-3-yl ester ethyl ester

Guidance literature:: With pyridine; In dichloromethane; at 20 ℃; for 2h;
DOI:10.1021/ol0618252

Reference yield:

: 480438-92-4
[(2,4-difluorophenyl)ethynyl]trimethylsilane

: 915772-30-4
Carbonic acid (2R,3S,6S)-6-(2,4-difluoro-phenylethynyl)-2-ethoxycarbonyloxymethyl-3,6-dihydro-2H-pyran-3-yl ester ethyl ester

Guidance literature:: Multi-step reaction with 3 steps

1: 316 mg / Sc(OTf)3 / 1,2-dichloro-ethane / 5 h / -25 °C

2: macroporous carbonate resin / methanol / 3 h

3: 275 mg / pyridine / CH₂Cl₂ / 2 h / 20 °C

With pyridine; macroporous carbonate resin; scandium tris(trifluoromethanesulfonate); In methanol; dichloromethane; 1,2-dichloro-ethane;
DOI:10.1021/ol0618252

Reference yield:

: 915771-99-2
Acetic acid (2R,3S,6S)-2-acetoxymethyl-6-(2,4-difluoro-phenylethynyl)-3,6-dihydro-2H-pyran-3-yl ester

: 915772-30-4
Carbonic acid (2R,3S,6S)-6-(2,4-difluoro-phenylethynyl)-2-ethoxycarbonyloxymethyl-3,6-dihydro-2H-pyran-3-yl ester ethyl ester

Guidance literature:: Multi-step reaction with 2 steps

1: macroporous carbonate resin / methanol / 3 h

2: 275 mg / pyridine / CH₂Cl₂ / 2 h / 20 °C

With pyridine; macroporous carbonate resin; In methanol; dichloromethane;
DOI:10.1021/ol0618252