[(4R,5S)-5-(2-Ethynyl-phenylethynyl)-4,5-dimethoxy-2-(2-methyl-propane-2-sulfonyl)-5,6-dihydro-4H-pyran-3-yl]-methanol

Base Information

• Chemical Name: [(4R,5S)-5-(2-Ethynyl-phenylethynyl)-4,5-dimethoxy-2-(2-methyl-propane-2-sulfonyl)-5,6-dihydro-4H-pyran-3-yl]-methanol
• CAS No.: 163594-85-2
• Molecular Formula: C₂₂H₂₆O₆S
• Molecular Weight: 418.511
• Mol file: 163594-85-2.mol

Synonyms:[(4R,5S)-5-(2-Ethynyl-phenylethynyl)-4,5-dimethoxy-2-(2-methyl-propane-2-sulfonyl)-5,6-dihydro-4H-pyran-3-yl]-methanol

Chemical Property of [(4R,5S)-5-(2-Ethynyl-phenylethynyl)-4,5-dimethoxy-2-(2-methyl-propane-2-sulfonyl)-5,6-dihydro-4H-pyran-3-yl]-methanol

Chemical Property:

Purity/Quality:

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

Useful:

Technology Process of [(4R,5S)-5-(2-Ethynyl-phenylethynyl)-4,5-dimethoxy-2-(2-methyl-propane-2-sulfonyl)-5,6-dihydro-4H-pyran-3-yl]-methanol

There total 2 articles about [(4R,5S)-5-(2-Ethynyl-phenylethynyl)-4,5-dimethoxy-2-(2-methyl-propane-2-sulfonyl)-5,6-dihydro-4H-pyran-3-yl]-methanol 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: 96.0%

[(4R,5S)-5-(2-{[Dimethyl-(1,1,2-trimethyl-propyl)-silanyl]-ethynyl}-phenylethynyl)-4,5-dimethoxy-2-(2-methyl-propane-2-sulfonyl)-5,6-dihydro-4H-pyran-3-yl]-methanol → [(4R,5S)-5-(2-Ethynyl-phenylethynyl)-4,5-dimethoxy-2-(2-methyl-propane-2-sulfonyl)-5,6-dihydro-4H-pyran-3-yl]-methanol (163594-85-2)

Guidance literature:

With tetrabutyl ammonium fluoride; In tetrahydrofuran; for 0.25h; Ambient temperature;

DOI:10.1039/c39950000799

Reference yield:

{2-[(3S,4R)-3,4-Dimethoxy-6-(2-methyl-propane-2-sulfonyl)-3,4-dihydro-2H-pyran-3-ylethynyl]-phenylethynyl}-dimethyl-(1,1,2-trimethyl-propyl)-silane → [(4R,5S)-5-(2-Ethynyl-phenylethynyl)-4,5-dimethoxy-2-(2-methyl-propane-2-sulfonyl)-5,6-dihydro-4H-pyran-3-yl]-methanol (163594-85-2)

Guidance literature:

Multi-step reaction with 2 steps

1: 80 percent / LDA / tetrahydrofuran / -78 °C

2: 96 percent / Bu₄NF / tetrahydrofuran / 0.25 h / Ambient temperature

With tetrabutyl ammonium fluoride; lithium diisopropyl amide; In tetrahydrofuran;

DOI:10.1039/c39950000799

Reference yield: 85.0%

[(4R,5S)-5-(2-Ethynyl-phenylethynyl)-4,5-dimethoxy-2-(2-methyl-propane-2-sulfonyl)-5,6-dihydro-4H-pyran-3-yl]-methanol (163594-85-2) → [(4R,5S)-5-(2-Iodoethynyl-phenylethynyl)-4,5-dimethoxy-2-(2-methyl-propane-2-sulfonyl)-5,6-dihydro-4H-pyran-3-yl]-methanol (163594-86-3)

Guidance literature:

With morpholine; iodine; In benzene; at 45 ℃; for 2h;

DOI:10.1039/c39950000799

Downstream raw materials:

[(4R,5S)-5-(2-Iodoethynyl-phenylethynyl)-4,5-dimethoxy-2-(2-methyl-propane-2-sulfonyl)-5,6-dihydro-4H-pyran-3-yl]-methanol

(4R,5S)-5-(2-Iodoethynyl-phenylethynyl)-4,5-dimethoxy-2-(2-methyl-propane-2-sulfonyl)-5,6-dihydro-4H-pyran-3-carbaldehyde