(2S,3R,5R)-3-(tert-butyldimethylsilyloxy)-2-(4-methoxybenzyloxy)-5-methyl-8-(trimethylsilyl)oct-7-yn-1-ol

Base Information

Chemical Name:(2S,3R,5R)-3-(tert-butyldimethylsilyloxy)-2-(4-methoxybenzyloxy)-5-methyl-8-(trimethylsilyl)oct-7-yn-1-ol
CAS No.:918310-76-6
Molecular Formula:C₂₆H₄₆O₄Si₂
Molecular Weight:478.82
Hs Code.:

Synonyms:(2S,3R,5R)-3-(tert-butyldimethylsilyloxy)-2-(4-methoxybenzyloxy)-5-methyl-8-(trimethylsilyl)oct-7-yn-1-ol

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Chemical Property of (2S,3R,5R)-3-(tert-butyldimethylsilyloxy)-2-(4-methoxybenzyloxy)-5-methyl-8-(trimethylsilyl)oct-7-yn-1-ol

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Technology Process of (2S,3R,5R)-3-(tert-butyldimethylsilyloxy)-2-(4-methoxybenzyloxy)-5-methyl-8-(trimethylsilyl)oct-7-yn-1-ol

There total 8 articles about (2S,3R,5R)-3-(tert-butyldimethylsilyloxy)-2-(4-methoxybenzyloxy)-5-methyl-8-(trimethylsilyl)oct-7-yn-1-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: 69.0%

: 918310-75-5
(5R,6S)-6-(4-methoxybenzyloxy)-2,2,3,3,9,9,10,10-octamethyl-5-((R)-2-methyl-5-(trimethylsilyl)pent-4-ynyl)-4,8-dioxa-3,9-disilaundecane

: 918310-76-6
(2S,3R,5R)-3-(tert-butyldimethylsilyloxy)-2-(4-methoxybenzyloxy)-5-methyl-8-(trimethylsilyl)oct-7-yn-1-ol

Guidance literature:: With pyridine; pyridine hydrogenfluoride; In tetrahydrofuran; at 20 ℃; for 3.5h;
DOI:10.1021/ja066971h

Reference yield:

: 882005-23-4
(2R)-2-methyl-5-trimethylsilanyl-4-pentyn-1-ol

: 918310-76-6
(2S,3R,5R)-3-(tert-butyldimethylsilyloxy)-2-(4-methoxybenzyloxy)-5-methyl-8-(trimethylsilyl)oct-7-yn-1-ol

Guidance literature:: Multi-step reaction with 6 steps

1.1: 89 percent / imidazole; triphenyl phosphine; I₂ / CH₂Cl₂ / 3.5 h

2.1: tert-butyllithium / pentane; diethyl ether / 0.08 h / -78 °C

2.2: 90 percent / pentane; diethyl ether / 1 h

3.1: 70 percent / diisopropylethylamine; SO₃*pyridine / CH₂Cl₂; dimethylsulfoxide / 1.5 h / 0 °C

4.1: LiI / diethyl ether / 0.08 h / -40 °C

4.2: LiAlH₄ / diethyl ether / 2 h / -100 °C

5.1: 96 percent / imidazole; DMAP / CH₂Cl₂ / 12 h

6.1: 69 percent / pyridine; HF*pyridine / tetrahydrofuran / 3.5 h / 20 °C

With pyridine; 1H-imidazole; dmap; pyridine-SO₃ complex; iodine; tert.-butyl lithium; pyridine hydrogenfluoride; N-ethyl-N,N-diisopropylamine; triphenylphosphine; lithium iodide; In tetrahydrofuran; diethyl ether; dichloromethane; dimethyl sulfoxide; pentane;
DOI:10.1021/ja066971h

Reference yield:

: 918310-74-4
(R)-1-iodo-2-methyl-5-(trimethyl)silyl-4-pentyne

: 918310-76-6
(2S,3R,5R)-3-(tert-butyldimethylsilyloxy)-2-(4-methoxybenzyloxy)-5-methyl-8-(trimethylsilyl)oct-7-yn-1-ol

Guidance literature:: Multi-step reaction with 5 steps

1.1: tert-butyllithium / pentane; diethyl ether / 0.08 h / -78 °C

1.2: 90 percent / pentane; diethyl ether / 1 h

2.1: 70 percent / diisopropylethylamine; SO₃*pyridine / CH₂Cl₂; dimethylsulfoxide / 1.5 h / 0 °C

3.1: LiI / diethyl ether / 0.08 h / -40 °C

3.2: LiAlH₄ / diethyl ether / 2 h / -100 °C

4.1: 96 percent / imidazole; DMAP / CH₂Cl₂ / 12 h

5.1: 69 percent / pyridine; HF*pyridine / tetrahydrofuran / 3.5 h / 20 °C

With pyridine; 1H-imidazole; dmap; pyridine-SO₃ complex; tert.-butyl lithium; pyridine hydrogenfluoride; N-ethyl-N,N-diisopropylamine; lithium iodide; In tetrahydrofuran; diethyl ether; dichloromethane; dimethyl sulfoxide; pentane;
DOI:10.1021/ja066971h