(R)-6-[(E)-(3R,4R)-4-(4-Methoxy-benzyloxy)-3-methyl-6-oxo-3-triethylsilanyloxy-8-trimethylsilanyl-oct-1-en-7-ynyl]-5,6-dihydro-pyran-2-one

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Chemical Name:(R)-6-[(E)-(3R,4R)-4-(4-Methoxy-benzyloxy)-3-methyl-6-oxo-3-triethylsilanyloxy-8-trimethylsilanyl-oct-1-en-7-ynyl]-5,6-dihydro-pyran-2-one
CAS No.:381665-42-5
Molecular Formula:C₃₁H₄₆O₆Si₂
Molecular Weight:570.874
Hs Code.:

Synonyms:(R)-6-[(E)-(3R,4R)-4-(4-Methoxy-benzyloxy)-3-methyl-6-oxo-3-triethylsilanyloxy-8-trimethylsilanyl-oct-1-en-7-ynyl]-5,6-dihydro-pyran-2-one

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Chemical Property of (R)-6-[(E)-(3R,4R)-4-(4-Methoxy-benzyloxy)-3-methyl-6-oxo-3-triethylsilanyloxy-8-trimethylsilanyl-oct-1-en-7-ynyl]-5,6-dihydro-pyran-2-one

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Technology Process of (R)-6-[(E)-(3R,4R)-4-(4-Methoxy-benzyloxy)-3-methyl-6-oxo-3-triethylsilanyloxy-8-trimethylsilanyl-oct-1-en-7-ynyl]-5,6-dihydro-pyran-2-one

There total 9 articles about (R)-6-[(E)-(3R,4R)-4-(4-Methoxy-benzyloxy)-3-methyl-6-oxo-3-triethylsilanyloxy-8-trimethylsilanyl-oct-1-en-7-ynyl]-5,6-dihydro-pyran-2-one 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%

: 89238-99-3
O-(4-methoxybenzyl)-trichloroacetimidate

: 381665-51-6
(R)-6-((E)-(3R,4R)-4-Hydroxy-3-methyl-6-oxo-3-triethylsilanyloxy-8-trimethylsilanyl-oct-1-en-7-ynyl)-5,6-dihydro-pyran-2-one

: 381665-42-5
(R)-6-[(E)-(3R,4R)-4-(4-Methoxy-benzyloxy)-3-methyl-6-oxo-3-triethylsilanyloxy-8-trimethylsilanyl-oct-1-en-7-ynyl]-5,6-dihydro-pyran-2-one

Guidance literature:: With trityl tetrafluoroborate; In diethyl ether;
DOI:10.1002/1521-3773(20011001)40:19<3667::AID-ANIE3667>3.0.CO;2-6

Reference yield:

: 381665-48-1
(2R,6R)-2-ethynyl-6-isopropoxy-3,6-dihydro-2H-pyran

: 381665-42-5
(R)-6-[(E)-(3R,4R)-4-(4-Methoxy-benzyloxy)-3-methyl-6-oxo-3-triethylsilanyloxy-8-trimethylsilanyl-oct-1-en-7-ynyl]-5,6-dihydro-pyran-2-one

Guidance literature:: Multi-step reaction with 6 steps

1.1: Cp₂Zr(H)Cl / CH₂Cl₂

1.2: Me₂Zn / CH₂Cl₂ / 0.17 h / -78 °C

1.3: CH₂Cl₂ / 4 h / 20 °C

2.1: imidazole / dimethylformamide

3.1: 89 percent / n-BuLi / tetrahydrofuran / -40 °C

4.1: PPTS / acetone; H₂O

4.2: 65 percent / MnO₂ / CH₂Cl₂

5.1: 70 percent / bis(trifluoroacetoxyiodobenzene) / methanol; H₂O

6.1: 83 percent / Ph₃CBF₄ / diethyl ether

With 1H-imidazole; n-butyllithium; trityl tetrafluoroborate; pyridinium p-toluenesulfonate; bis-[(trifluoroacetoxy)iodo]benzene; Schwartz's reagent; In tetrahydrofuran; methanol; diethyl ether; dichloromethane; water; N,N-dimethyl-formamide; acetone;
DOI:10.1002/1521-3773(20011001)40:19<3667::AID-ANIE3667>3.0.CO;2-6

Reference yield:

: 381665-39-0
(2R,6R)-6-Benzyloxy-2-ethynyl-3,6-dihydro-2H-pyran

: 381665-42-5
(R)-6-[(E)-(3R,4R)-4-(4-Methoxy-benzyloxy)-3-methyl-6-oxo-3-triethylsilanyloxy-8-trimethylsilanyl-oct-1-en-7-ynyl]-5,6-dihydro-pyran-2-one

Guidance literature:: Multi-step reaction with 7 steps

1.1: 90 percent / TsOH

2.1: Cp₂Zr(H)Cl / CH₂Cl₂

2.2: Me₂Zn / CH₂Cl₂ / 0.17 h / -78 °C

2.3: CH₂Cl₂ / 4 h / 20 °C

3.1: imidazole / dimethylformamide

4.1: 89 percent / n-BuLi / tetrahydrofuran / -40 °C

5.1: PPTS / acetone; H₂O

5.2: 65 percent / MnO₂ / CH₂Cl₂

6.1: 70 percent / bis(trifluoroacetoxyiodobenzene) / methanol; H₂O

7.1: 83 percent / Ph₃CBF₄ / diethyl ether

With 1H-imidazole; n-butyllithium; trityl tetrafluoroborate; pyridinium p-toluenesulfonate; toluene-4-sulfonic acid; bis-[(trifluoroacetoxy)iodo]benzene; Schwartz's reagent; In tetrahydrofuran; methanol; diethyl ether; dichloromethane; water; N,N-dimethyl-formamide; acetone;
DOI:10.1002/1521-3773(20011001)40:19<3667::AID-ANIE3667>3.0.CO;2-6