(2R,3R,4R,5R,6S,9RS,10S,13R,14S)-3,4-bis(tert-butyldimethylsilyloxy)-2,5:10,14-dioxido-6,13-bis(methoxymethoxy)-1-trityloxytetracos-7-yn-9-ol

Base Information

Chemical Name:(2R,3R,4R,5R,6S,9RS,10S,13R,14S)-3,4-bis(tert-butyldimethylsilyloxy)-2,5:10,14-dioxido-6,13-bis(methoxymethoxy)-1-trityloxytetracos-7-yn-9-ol
CAS No.:220772-76-9
Molecular Formula:C₅₉H₉₂O₁₀Si₂
Molecular Weight:1017.54
Hs Code.:

Synonyms:(2R,3R,4R,5R,6S,9RS,10S,13R,14S)-3,4-bis(tert-butyldimethylsilyloxy)-2,5:10,14-dioxido-6,13-bis(methoxymethoxy)-1-trityloxytetracos-7-yn-9-ol

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Chemical Property of (2R,3R,4R,5R,6S,9RS,10S,13R,14S)-3,4-bis(tert-butyldimethylsilyloxy)-2,5:10,14-dioxido-6,13-bis(methoxymethoxy)-1-trityloxytetracos-7-yn-9-ol

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Technology Process of (2R,3R,4R,5R,6S,9RS,10S,13R,14S)-3,4-bis(tert-butyldimethylsilyloxy)-2,5:10,14-dioxido-6,13-bis(methoxymethoxy)-1-trityloxytetracos-7-yn-9-ol

There total 29 articles about (2R,3R,4R,5R,6S,9RS,10S,13R,14S)-3,4-bis(tert-butyldimethylsilyloxy)-2,5:10,14-dioxido-6,13-bis(methoxymethoxy)-1-trityloxytetracos-7-yn-9-ol 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: 78.0%

: 220772-68-9
(2S,5R,6S)-2-formyl-5-methoxymethyloxy-6-decyltetrahydropyran

: 220772-75-8
(2R,3R,4R,5R)-3,4-di-tert-butyldimethylsilyloxy-2-[(1S)-(1-methoxymethyloxy)ethynyl]-5-(1-trityloxymethyl)tetrahydrofuran

: 220772-76-9
(2R,3R,4R,5R,6S,9RS,10S,13R,14S)-3,4-bis(tert-butyldimethylsilyloxy)-2,5:10,14-dioxido-6,13-bis(methoxymethoxy)-1-trityloxytetracos-7-yn-9-ol

Guidance literature:: With n-butyllithium; cerium(III) chloride; In tetrahydrofuran; at -78 ℃;
DOI:10.1016/S0040-4039(98)02439-3

Reference yield:

: 17049-50-2
n-decyl magnesium bromide

: 220772-76-9
(2R,3R,4R,5R,6S,9RS,10S,13R,14S)-3,4-bis(tert-butyldimethylsilyloxy)-2,5:10,14-dioxido-6,13-bis(methoxymethoxy)-1-trityloxytetracos-7-yn-9-ol

Guidance literature:: Multi-step reaction with 11 steps

1.1: diethyl ether / 2.5 h / -78 °C

2.1: 1.17 g / triethylsilane; BF₃*Et₂O / CH₂Cl₂ / 3.5 h / -40 - -30 °C

3.1: hydrogen / 10percent Pd/C / methanol; ethyl acetate / 96 h / 20 °C

4.1: 10.4 g / imidazole / dimethylformamide / 18 h / 20 °C

5.1: trimethyl orthoformate; d-camphorsulfonic acid / CH₂Cl₂ / 3 h / 20 °C

5.2: 66 percent / 7 h / 130 °C

6.1: hydrogen / 10percent Pd/C / ethyl acetate; methanol / 8 h / 20 °C

7.1: sodium methoxide; Dowex 50W X-8 (H⁽¹⁺⁾) resin / methanol; CH₂Cl₂ / 96 h / 20 °C

8.1: N,N-diisopropylethylamine / CH₂Cl₂ / 48 h / 0 - 20 °C

9.1: 3.64 g / tetrabutylammonium fluoride / tetrahydrofuran / 18 h / 20 °C

10.1: oxalyl chloride / CH₂Cl₂; dimethylsulfoxide / 0.5 h / -70 °C

10.2: 100 percent / triethylamine / CH₂Cl₂; dimethylsulfoxide / -70 - 0 °C

11.1: 78 percent / n-BuLi; anhydrous cerium chloride / tetrahydrofuran; hexane / 5 h / -78 - -23 °C

With 1H-imidazole; triethylsilane; n-butyllithium; cerium(III) chloride; oxalyl dichloride; Dowex 50W X-8 (H⁽¹⁺⁾) resin; boron trifluoride diethyl etherate; (1S)-10-camphorsulfonic acid; tetrabutyl ammonium fluoride; hydrogen; sodium methylate; N-ethyl-N,N-diisopropylamine; trimethyl orthoformate; 10percent Pd/C; In tetrahydrofuran; methanol; diethyl ether; hexane; dichloromethane; dimethyl sulfoxide; ethyl acetate; N,N-dimethyl-formamide;
DOI:10.1021/jo020211h

Reference yield:

: 82598-84-3
2,3,4,6-tetra-O-benzyl-D-galactonolactone

: 220772-76-9
(2R,3R,4R,5R,6S,9RS,10S,13R,14S)-3,4-bis(tert-butyldimethylsilyloxy)-2,5:10,14-dioxido-6,13-bis(methoxymethoxy)-1-trityloxytetracos-7-yn-9-ol

Guidance literature:: Multi-step reaction with 11 steps

1.1: diethyl ether / 2.5 h / -78 °C

2.1: 1.17 g / triethylsilane; BF₃*Et₂O / CH₂Cl₂ / 3.5 h / -40 - -30 °C

3.1: hydrogen / 10percent Pd/C / methanol; ethyl acetate / 96 h / 20 °C

4.1: 10.4 g / imidazole / dimethylformamide / 18 h / 20 °C

5.1: trimethyl orthoformate; d-camphorsulfonic acid / CH₂Cl₂ / 3 h / 20 °C

5.2: 66 percent / 7 h / 130 °C

6.1: hydrogen / 10percent Pd/C / ethyl acetate; methanol / 8 h / 20 °C

7.1: sodium methoxide; Dowex 50W X-8 (H⁽¹⁺⁾) resin / methanol; CH₂Cl₂ / 96 h / 20 °C

8.1: N,N-diisopropylethylamine / CH₂Cl₂ / 48 h / 0 - 20 °C

9.1: 3.64 g / tetrabutylammonium fluoride / tetrahydrofuran / 18 h / 20 °C

10.1: oxalyl chloride / CH₂Cl₂; dimethylsulfoxide / 0.5 h / -70 °C

10.2: 100 percent / triethylamine / CH₂Cl₂; dimethylsulfoxide / -70 - 0 °C

11.1: 78 percent / n-BuLi; anhydrous cerium chloride / tetrahydrofuran; hexane / 5 h / -78 - -23 °C

With 1H-imidazole; triethylsilane; n-butyllithium; cerium(III) chloride; oxalyl dichloride; Dowex 50W X-8 (H⁽¹⁺⁾) resin; boron trifluoride diethyl etherate; (1S)-10-camphorsulfonic acid; tetrabutyl ammonium fluoride; hydrogen; sodium methylate; N-ethyl-N,N-diisopropylamine; trimethyl orthoformate; 10percent Pd/C; In tetrahydrofuran; methanol; diethyl ether; hexane; dichloromethane; dimethyl sulfoxide; ethyl acetate; N,N-dimethyl-formamide;
DOI:10.1021/jo020211h