D-PTAN

Base Information

• Chemical Name: D-PTAN
• CAS No.: 156835-63-1
• Molecular Formula: C₂₀H₁₆O₇
• Molecular Weight: 368.343
• Mol file: 156835-63-1.mol

Synonyms:DI-P-TOLUOYL-D-TARTARIC ANHYDRIDE;D-PTAN

Chemical Property of D-PTAN

Chemical Property:

• Boiling Point: 558.2±50.0 °C(Predicted)
• PSA: 95.97000
• Density: 1.37±0.1 g/cm3(Predicted)
• LogP: 2.13780

Purity/Quality:

O,O'-Di-p-toluoyl-D-tartaricanhydride 97% ^*data from reagent suppliers

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

SDS file from LookChem

Useful:

Technology Process of D-PTAN

There total 7 articles about D-PTAN 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: 76.0%

(2S,3S)-di-4-toluoyltartaric acid (32634-68-7) → (3S,4S)-2,5-dioxotetrahydrofuran-3,4-diyl bis(4-methylbenzoate) (72842-25-2,156835-63-1)

Guidance literature:

With acetic anhydride; at 85 ℃; for 2h;

Reference yield:

4-methyl-benzoyl chloride (874-60-2) + tartaric acid (87-69-4,138508-61-9) → di(p-toluoyl)tartaric acid anhydride (156835-63-1)

Guidance literature:

With thionyl chloride; In toluene; at 80 - 110 ℃; for 4h; Temperature; Large scale;

Reference yield:

D-tartaric acid (147-71-7,138508-61-9) + 4-methyl-benzoyl chloride (874-60-2) → (3S,4S)-2,5-dioxotetrahydrofuran-3,4-diyl bis(4-methylbenzoate) (72842-25-2,156835-63-1)

Guidance literature:

With copper(II) sulfate; In toluene; for 6h; Large scale;

upstream raw materials:

D-tartaric acid

para-chlorotoluene

4-methyl-benzoyl chloride

(2S,3S)-di-4-toluoyltartaric acid