<<4-<3,4-dihydro-5,7-dimethoxy-6-(3-methyl-2-butenyl)-2H-1-benzopyran-3-yl>-1,3-phenylene>bis<<(oxymethylene)oxy>-2,1-ethanediyl>>bis(trimethylsilane)

Base Information

• Chemical Name: <<4-<3,4-dihydro-5,7-dimethoxy-6-(3-methyl-2-butenyl)-2H-1-benzopyran-3-yl>-1,3-phenylene>bis<<(oxymethylene)oxy>-2,1-ethanediyl>>bis(trimethylsilane)
• CAS No.: 107913-82-6
• Molecular Formula: C₃₄H₅₄O₇Si₂
• Molecular Weight: 630.97
• Mol file: 107913-82-6.mol

Synonyms:<<4-<3,4-dihydro-5,7-dimethoxy-6-(3-methyl-2-butenyl)-2H-1-benzopyran-3-yl>-1,3-phenylene>bis<<(oxymethylene)oxy>-2,1-ethanediyl>>bis(trimethylsilane)

Chemical Property of <<4-<3,4-dihydro-5,7-dimethoxy-6-(3-methyl-2-butenyl)-2H-1-benzopyran-3-yl>-1,3-phenylene>bis<<(oxymethylene)oxy>-2,1-ethanediyl>>bis(trimethylsilane)

Chemical Property:

Purity/Quality:

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

Useful:

Technology Process of <<4-<3,4-dihydro-5,7-dimethoxy-6-(3-methyl-2-butenyl)-2H-1-benzopyran-3-yl>-1,3-phenylene>bis<<(oxymethylene)oxy>-2,1-ethanediyl>>bis(trimethylsilane)

There total 2 articles about <<4-<3,4-dihydro-5,7-dimethoxy-6-(3-methyl-2-butenyl)-2H-1-benzopyran-3-yl>-1,3-phenylene>bis<<(oxymethylene)oxy>-2,1-ethanediyl>>bis(trimethylsilane) 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: 83.0%

β-<2,4-bis<<2-(trimethylsilyl)ethoxy>methoxy>phenyl>-6-hydroxy-3-(2-hydroxy-3-methylbutyl)-2,4-dimethoxybenzenepropanol (107913-79-1,107913-90-6) → <<4-<3,4-dihydro-5,7-dimethoxy-6-(3-methyl-2-butenyl)-2H-1-benzopyran-3-yl>-1,3-phenylene>bis<<(oxymethylene)oxy>-2,1-ethanediyl>>bis(trimethylsilane) (107913-82-6)

Guidance literature:

With triphenylphosphine; diethylazodicarboxylate; In tetrahydrofuran; at 20 ℃; for 22h;

DOI:10.1021/jo00386a024

Reference yield:

2-<2-<2,4-bis<<2-(trimethylsilyl)ethoxy>methoxy>phenyl>-2-propenyl>-3,5-dimethoxy-4-(3-methyl-2-butenyl)phenol acetate (107913-78-0) → <<4-<3,4-dihydro-5,7-dimethoxy-6-(3-methyl-2-butenyl)-2H-1-benzopyran-3-yl>-1,3-phenylene>bis<<(oxymethylene)oxy>-2,1-ethanediyl>>bis(trimethylsilane) (107913-82-6)

Guidance literature:

Multi-step reaction with 2 steps

1: 75 percent / 9-borabicyclo<3.3.1>nonane / tetrahydrofuran / 17 h / 20 °C

2: 83 percent / triphenylphosphine, diethyl azodicarboxylate / tetrahydrofuran / 22 h / 20 °C

With 9-borabicyclo[3.3.1]nonane dimer; triphenylphosphine; diethylazodicarboxylate; In tetrahydrofuran;

DOI:10.1021/jo00386a024

Reference yield: 90.0%

<<4-<3,4-dihydro-5,7-dimethoxy-6-(3-methyl-2-butenyl)-2H-1-benzopyran-3-yl>-1,3-phenylene>bis<<(oxymethylene)oxy>-2,1-ethanediyl>>bis(trimethylsilane) (107913-82-6) → Glyasperin D (107913-84-8)

Guidance literature:

With sulfuric acid; In tetrahydrofuran; methanol; at 20 ℃; for 2h;

DOI:10.1021/jo00386a024

upstream raw materials:

β-<2,4-bis<<2-(trimethylsilyl)ethoxy>methoxy>phenyl>-6-hydroxy-3-(2-hydroxy-3-methylbutyl)-2,4-dimethoxybenzenepropanol

2-<2-<2,4-bis<<2-(trimethylsilyl)ethoxy>methoxy>phenyl>-2-propenyl>-3,5-dimethoxy-4-(3-methyl-2-butenyl)phenol acetate

Downstream raw materials:

Glyasperin D

2-<3,4-dihydro-5,7-dimethoxy-6-(3-methyl-2-butenyl)-2H-1-benzopyran-3-yl>-5-<<(1,1-dimethylethyl)dimethylsilyl>oxy>phenol

(+/-)-5-O-methyllicoricidin

6-<3,4-dihydro-5,7-dimethoxy-6-(3-methyl-2-butenyl)-2H-1-benzopyran-3-yl>-3-<<(1,1-dimethylethyl)dimethylsilyl>oxy>-2-(3-methyl-2-butenyl)phenol