9-Phenanthrenecarboxylic acid, 2,3,6,7-tetramethoxy-

Base Information

• Chemical Name: 9-Phenanthrenecarboxylic acid, 2,3,6,7-tetramethoxy-
• CAS No.: 35676-02-9
• Molecular Formula: C19H18O6
• Molecular Weight: 342.348

Synonyms:2,3,6,7-Tetramethoxy-phenanthrene-9-carboxylic acid;2,3,6,7-tetramethoxyphenanthrene-9-carboxylic acid;2,3,6,7-tetramethoxy-9-Phenanthrenecarboxylic acid;2,3,6,7-tetramethoxy-9-phenanthrene carboxylic acid;2,3,6,7-teramethoxyphenanthrene-9-carboxylic acid;2,3,6,7-Tetramethoxy-9-carboxy-phenanthren;2,3,6,7-Tetramethoxy-phenanthren-9-carbonsaeure;

Chemical Property of 9-Phenanthrenecarboxylic acid, 2,3,6,7-tetramethoxy-

Chemical Property:

• Melting Point: 282 - 286 °C
• PSA: 74.22000
• LogP: 3.72560

Purity/Quality:

99.90% ^*data from raw suppliers

2,?3,?6,?7-?Tetramethoxy-9-phenanthrenecarboxylicAcid ^*data from reagent suppliers

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

Useful:

• Uses: 2,3,6,7-Tetramethoxy-9-phenanthrenecarboxylic Acid is an intermediate in the synthesis of (+)-(S)-Tylophorine (T898200) is a a major alkaloid of Tylophora indica.

Technology Process of 9-Phenanthrenecarboxylic acid, 2,3,6,7-tetramethoxy-

There total 9 articles about 9-Phenanthrenecarboxylic acid, 2,3,6,7-tetramethoxy- 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: 99.0%

(Z)-2,3-bis(3,4-dimethoxyphenyl)propenoic acid (172922-62-2) → 2,3,6,7-tetramethoxy-phenanthrene-9-carboxylic acid (35676-02-9)

Guidance literature:

With trifluoroacetic acid; sodium nitrite; In acetonitrile; at 20 ℃; for 0.5h;

DOI:10.1002/adsc.201100578

Reference yield: 96.0%

(E)-2,3-bis(3,4-dimethoxyphenyl)acrylic acid (52840-52-5,24316-12-9) → 2,3,6,7-tetramethoxy-phenanthrene-9-carboxylic acid (35676-02-9)

Guidance literature:

With iron(III) chloride; 3-chloro-benzenecarboperoxoic acid; In dichloromethane; at 20 ℃; for 0.5h; Inert atmosphere;

DOI:10.1021/jo8021633

Reference yield: 94.0%

2,3-bis(3,4-dimethoxyphenyl)acrylic acid (52840-52-5) → 2,3,6,7-tetramethoxy-phenanthrene-9-carboxylic acid (35676-02-9)

Guidance literature:

With 3-chloro-benzenecarboperoxoic acid; trifluoroacetic acid; at 20 ℃; for 1h;

DOI:10.1016/j.tet.2010.09.101

upstream raw materials:

methyl 2,3,6,7-tetramethoxyphenanthrene-9-carboxylate

2,3-bis(3,4-dimethoxyphenyl)acrylic acid

(E)-2,3-bis(3,4-dimethoxyphenyl)acrylic acid

(Z)-2,3-bis(3,4-dimethoxyphenyl)propenoic acid

Downstream raw materials:

(S)-(+)-tylophorine

(R)-tylophorine

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