((4S,5R)-2,6-Dioxo-4-phenyl-1,3-dioxa-7-aza-spiro[4.5]dec-7-yl)-acetic acid ethyl ester

Base Information

Chemical Name:((4S,5R)-2,6-Dioxo-4-phenyl-1,3-dioxa-7-aza-spiro[4.5]dec-7-yl)-acetic acid ethyl ester
CAS No.:250248-83-0
Molecular Formula:C₁₇H₁₉NO₆
Molecular Weight:333.341
Hs Code.:

Synonyms:((4S,5R)-2,6-Dioxo-4-phenyl-1,3-dioxa-7-aza-spiro[4.5]dec-7-yl)-acetic acid ethyl ester

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Chemical Property of ((4S,5R)-2,6-Dioxo-4-phenyl-1,3-dioxa-7-aza-spiro[4.5]dec-7-yl)-acetic acid ethyl ester

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Technology Process of ((4S,5R)-2,6-Dioxo-4-phenyl-1,3-dioxa-7-aza-spiro[4.5]dec-7-yl)-acetic acid ethyl ester

There total 6 articles about ((4S,5R)-2,6-Dioxo-4-phenyl-1,3-dioxa-7-aza-spiro[4.5]dec-7-yl)-acetic acid ethyl 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: 100.0%

: 530-62-1
1,1'-carbonyldiimidazole

: 250248-77-2
[(R)-3-Hydroxy-3-((S)-hydroxy-phenyl-methyl)-2-oxo-piperidin-1-yl]-acetic acid ethyl ester

: 250248-83-0
((4S,5R)-2,6-Dioxo-4-phenyl-1,3-dioxa-7-aza-spiro[4.5]dec-7-yl)-acetic acid ethyl ester

Guidance literature:: In tetrahydrofuran; Heating;
DOI:10.1016/S0960-894X(99)00448-5

Reference yield:

: 675-20-7
piperidin-2-one

: 250248-83-0
((4S,5R)-2,6-Dioxo-4-phenyl-1,3-dioxa-7-aza-spiro[4.5]dec-7-yl)-acetic acid ethyl ester

Guidance literature:: Multi-step reaction with 5 steps

1: 80 percent / DMAP; Et₃N / CH₂Cl₂ / 0 - 20 °C

2: 33 percent / NaH; AcOH / methanol; tetrahydrofuran / 5 - 20 °C

3: 86 percent / lithium bis-trimethylsilylamide / tetrahydrofuran / 0 - 20 °C

4: 69 percent / 2 percent K₂OsO₄; AD-mix alpha; MeSO₂NH₂ / 2-methyl-propan-2-ol; H₂O / 20 °C

5: 100 percent / tetrahydrofuran / Heating

With dmap; potassium osmate(VI); AD-mix-α; methanesulfonamide; sodium hydride; acetic acid; triethylamine; lithium hexamethyldisilazane; In tetrahydrofuran; methanol; dichloromethane; water; tert-butyl alcohol; 1: protection / 2: Condensation / 3: Alkylation / 4: dihydroxylation / 5: Cyclization;
DOI:10.1016/S0960-894X(99)00448-5

Reference yield:

: 3326-13-4
N-acetyl-2-piperidone

: 250248-83-0
((4S,5R)-2,6-Dioxo-4-phenyl-1,3-dioxa-7-aza-spiro[4.5]dec-7-yl)-acetic acid ethyl ester

Guidance literature:: Multi-step reaction with 4 steps

1: 56 percent / NaH; AcOH / methanol; tetrahydrofuran / 5 - 20 °C

2: 86 percent / lithium bis-trimethylsilylamide / tetrahydrofuran / 0 - 20 °C

3: 69 percent / 2 percent K₂OsO₄; AD-mix alpha; MeSO₂NH₂ / 2-methyl-propan-2-ol; H₂O / 20 °C

4: 100 percent / tetrahydrofuran / Heating

With potassium osmate(VI); AD-mix-α; methanesulfonamide; sodium hydride; acetic acid; lithium hexamethyldisilazane; In tetrahydrofuran; methanol; water; tert-butyl alcohol; 1: Condensation / 2: Alkylation / 3: dihydroxylation / 4: Cyclization;
DOI:10.1016/S0960-894X(99)00448-5