4-(4-methoxy-benzyloxy)-3-methyl-6-methylene-5-trimethylsilanyloxy-tetrahydro-pyran-2-carboxylic acid methyl ester

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Chemical Name:4-(4-methoxy-benzyloxy)-3-methyl-6-methylene-5-trimethylsilanyloxy-tetrahydro-pyran-2-carboxylic acid methyl ester
CAS No.:929298-33-9
Molecular Formula:C₂₀H₃₀O₆Si
Molecular Weight:394.54
Hs Code.:

Synonyms:4-(4-methoxy-benzyloxy)-3-methyl-6-methylene-5-trimethylsilanyloxy-tetrahydro-pyran-2-carboxylic acid methyl ester

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Chemical Property of 4-(4-methoxy-benzyloxy)-3-methyl-6-methylene-5-trimethylsilanyloxy-tetrahydro-pyran-2-carboxylic acid methyl ester

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Technology Process of 4-(4-methoxy-benzyloxy)-3-methyl-6-methylene-5-trimethylsilanyloxy-tetrahydro-pyran-2-carboxylic acid methyl ester

There total 7 articles about 4-(4-methoxy-benzyloxy)-3-methyl-6-methylene-5-trimethylsilanyloxy-tetrahydro-pyran-2-carboxylic acid methyl ester 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: 94.0%

: 929298-15-7
6-iodomethyl-4-(4-methoxy-benzyloxy)-3-methyl-5-trimethylsilanyloxy-tetrahydro-pyran-2-carboxylic acid methyl ester

: 929298-33-9
4-(4-methoxy-benzyloxy)-3-methyl-6-methylene-5-trimethylsilanyloxy-tetrahydro-pyran-2-carboxylic acid methyl ester

Guidance literature:: With 1,8-diazabicyclo[5.4.0]undec-7-ene; In N,N-dimethyl-formamide; at 60 ℃; for 2h;
DOI:10.1135/cccc2008181

Reference yield:

: 8-(4-methoxy-benzyloxy)-2,2,7-trimethyl-hexahydro-pyrano[3,2-d][1,3]dioxine-6-carbaldehyde

: 929298-33-9
4-(4-methoxy-benzyloxy)-3-methyl-6-methylene-5-trimethylsilanyloxy-tetrahydro-pyran-2-carboxylic acid methyl ester

Guidance literature:: Multi-step reaction with 6 steps

1: NaH₂PO₄; 2-methyl-2-butene; sodium chlorite / 2-methyl-propan-2-ol; H₂O / 2 h / 20 °C

2: 4.16 g / diethyl ether

3: 100 percent / aq. HCl / tetrahydrofuran / 2 h

4: 92 percent / pyridine; triphenylphosphine; iodine / benzene / 2 h / Heating

5: 92 percent / pyridine; DMAP / CH₂Cl₂; dimethylformamide / 0 - 20 °C

6: 90 percent / DBU / benzene / 5.5 h / 65 °C

With pyridine; hydrogenchloride; dmap; sodium chlorite; sodium dihydrogenphosphate; 2-methyl-but-2-ene; iodine; 1,8-diazabicyclo[5.4.0]undec-7-ene; triphenylphosphine; In tetrahydrofuran; diethyl ether; dichloromethane; water; N,N-dimethyl-formamide; tert-butyl alcohol; benzene;
DOI:10.1021/ol063083i

Reference yield:

: 929298-13-5
5-hydroxy-6-hydroxymethyl-4-(4-methoxy-benzyloxy)-3-methyl-tetrahydro-pyran-2-carboxylic acid methyl ester

: 929298-33-9
4-(4-methoxy-benzyloxy)-3-methyl-6-methylene-5-trimethylsilanyloxy-tetrahydro-pyran-2-carboxylic acid methyl ester

Guidance literature:: Multi-step reaction with 3 steps

1: 92 percent / pyridine; triphenylphosphine; iodine / benzene / 2 h / Heating

2: 92 percent / pyridine; DMAP / CH₂Cl₂; dimethylformamide / 0 - 20 °C

3: 90 percent / DBU / benzene / 5.5 h / 65 °C

With pyridine; dmap; iodine; 1,8-diazabicyclo[5.4.0]undec-7-ene; triphenylphosphine; In dichloromethane; N,N-dimethyl-formamide; benzene;
DOI:10.1021/ol063083i