(+)-(8S,5R)-8-(tert-butyldimethylsilyloxy)-6-(toluene-4-sulfonyl)-6-azaspiro[4.5]decan-1-one

Base Information

Chemical Name:(+)-(8S,5R)-8-(tert-butyldimethylsilyloxy)-6-(toluene-4-sulfonyl)-6-azaspiro[4.5]decan-1-one
CAS No.:353248-40-5
Molecular Formula:C₂₂H₃₅NO₄SSi
Molecular Weight:437.676
Hs Code.:

Synonyms:(+)-(8S,5R)-8-(tert-butyldimethylsilyloxy)-6-(toluene-4-sulfonyl)-6-azaspiro[4.5]decan-1-one

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Chemical Property of (+)-(8S,5R)-8-(tert-butyldimethylsilyloxy)-6-(toluene-4-sulfonyl)-6-azaspiro[4.5]decan-1-one

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Technology Process of (+)-(8S,5R)-8-(tert-butyldimethylsilyloxy)-6-(toluene-4-sulfonyl)-6-azaspiro[4.5]decan-1-one

There total 7 articles about (+)-(8S,5R)-8-(tert-butyldimethylsilyloxy)-6-(toluene-4-sulfonyl)-6-azaspiro[4.5]decan-1-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:

: (+)-(3S)-3-(tert-butyldimethylsilanyloxy)-1-(toluene-4-sulfonyl)-6-trimethylstannyl-1,2,3,4-tetrahydropyridine

: 353248-40-5
(+)-(8S,5R)-8-(tert-butyldimethylsilyloxy)-6-(toluene-4-sulfonyl)-6-azaspiro[4.5]decan-1-one

Guidance literature:: Multi-step reaction with 2 steps

1.1: MeLi; MgBr₂ / diethyl ether

1.2: diethyl ether / -100 °C

2.1: camphorsulfonic acid / CH₂Cl₂ / 13 h / 45 °C

With camphor-10-sulfonic acid; methyllithium; magnesium bromide; In diethyl ether; dichloromethane; 2.1: semipinacol rearrangement;
DOI:10.1021/ol0160708

Reference yield:

: 24211-54-9
(S)-5-hydroxypiperidin-2-one

: 353248-40-5
(+)-(8S,5R)-8-(tert-butyldimethylsilyloxy)-6-(toluene-4-sulfonyl)-6-azaspiro[4.5]decan-1-one

Guidance literature:: Multi-step reaction with 5 steps

1.1: 90 percent / imidazole / dimethylformamide / 13 h / 20 °C

2.1: n-butyllithium / tetrahydrofuran; hexane / 0.5 h / -78 °C

2.2: 75 percent / tetrahydrofuran; hexane / 1.5 h / -78 °C

3.1: potassium hexamethyldisilazide / tetrahydrofuran; toluene / -78 °C

3.2: 76 percent / tetrahydrofuran; toluene / -78 - 20 °C

4.1: (1S)-(+)-10-camphorsulfonic acid / CH₂Cl₂ / 13 h / 45 °C

With 1H-imidazole; n-butyllithium; potassium hexamethylsilazane; (+)-10-camphorsulfonic acid; In tetrahydrofuran; hexane; dichloromethane; N,N-dimethyl-formamide; toluene;
DOI:10.1021/jo0493572

Reference yield:

: 87179-81-5
(-)-(5S)-5-(tert-butyldimethylsilanyloxy)piperidin-2-one

: 353248-40-5
(+)-(8S,5R)-8-(tert-butyldimethylsilyloxy)-6-(toluene-4-sulfonyl)-6-azaspiro[4.5]decan-1-one

Guidance literature:: Multi-step reaction with 4 steps

1.1: n-butyllithium / tetrahydrofuran; hexane / 0.5 h / -78 °C

1.2: 75 percent / tetrahydrofuran; hexane / 1.5 h / -78 °C

2.1: potassium hexamethyldisilazide / tetrahydrofuran; toluene / -78 °C

2.2: 76 percent / tetrahydrofuran; toluene / -78 - 20 °C

3.1: (1S)-(+)-10-camphorsulfonic acid / CH₂Cl₂ / 13 h / 45 °C

With n-butyllithium; potassium hexamethylsilazane; (+)-10-camphorsulfonic acid; In tetrahydrofuran; hexane; dichloromethane; toluene;
DOI:10.1021/jo0493572