(-)-(2S,3R)-2-phenyl-3-(p-tolylsulfonyl)-3,6-dihydro-2H-pyran

Base Information

• Chemical Name: (-)-(2S,3R)-2-phenyl-3-(p-tolylsulfonyl)-3,6-dihydro-2H-pyran
• CAS No.: 729594-11-0
• Molecular Formula: C₁₈H₁₈O₃S
• Molecular Weight: 314.405
• Mol file: 729594-11-0.mol

Synonyms:(-)-(2S,3R)-2-phenyl-3-(p-tolylsulfonyl)-3,6-dihydro-2H-pyran

Chemical Property of (-)-(2S,3R)-2-phenyl-3-(p-tolylsulfonyl)-3,6-dihydro-2H-pyran

Chemical Property:

Purity/Quality:

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Technology Process of (-)-(2S,3R)-2-phenyl-3-(p-tolylsulfonyl)-3,6-dihydro-2H-pyran

There total 1 articles about (-)-(2S,3R)-2-phenyl-3-(p-tolylsulfonyl)-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:

(-)-(S)-2-(Z)-4-(Z)-5-phenyl-4-(p-tolylsulfinyl)penta-2,4-dien-1-ol (729593-95-7) → (-)-(2S,3R)-2-phenyl-3-(p-tolylsulfonyl)-3,6-dihydro-2H-pyran (729594-11-0)

Guidance literature:

Multi-step reaction with 2 steps

1: LDA / tetrahydrofuran / -78 - 20 °C

2: MMPP / methanol

With lithium diisopropyl amide; In tetrahydrofuran; methanol;

DOI:10.1080/10426500590910819

Reference yield: 89.0%

(-)-(2S,3R)-2-phenyl-3-(p-tolylsulfonyl)-3,6-dihydro-2H-pyran (729594-11-0) → (+)-(3S,4S,5R,6S)-6-phenyl-5-(p-tolylsulfonyl)-tetrahydro-2H-pyran-3,4-diol (729593-88-8)

Guidance literature:

With osmium(VIII) oxide; trimethylamine-N-oxide; In water; acetone; at 20 ℃; for 2h;

DOI:10.1021/jo801029q

upstream raw materials:

(-)-(S)-2-(Z)-4-(Z)-5-phenyl-4-(p-tolylsulfinyl)penta-2,4-dien-1-ol

Downstream raw materials:

(+)-(3S,4S,5R,6S)-6-phenyl-5-(p-tolylsulfonyl)-tetrahydro-2H-pyran-3,4-diol