toluene-4-sulfonic acid (S)-5-(1,1-difluoro-propyl)-7-oxo-2,3-dihydro-7H-oxazolo[3,2-a]pyrimidin-2-ylmethyl ester

Base Information

Chemical Name:toluene-4-sulfonic acid (S)-5-(1,1-difluoro-propyl)-7-oxo-2,3-dihydro-7H-oxazolo[3,2-a]pyrimidin-2-ylmethyl ester
CAS No.:1278585-40-2
Molecular Formula:C₁₇H₁₈F₂N₂O₅S
Molecular Weight:400.403
Hs Code.:

Synonyms:toluene-4-sulfonic acid (S)-5-(1,1-difluoro-propyl)-7-oxo-2,3-dihydro-7H-oxazolo[3,2-a]pyrimidin-2-ylmethyl ester

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Chemical Property of toluene-4-sulfonic acid (S)-5-(1,1-difluoro-propyl)-7-oxo-2,3-dihydro-7H-oxazolo[3,2-a]pyrimidin-2-ylmethyl ester

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Technology Process of toluene-4-sulfonic acid (S)-5-(1,1-difluoro-propyl)-7-oxo-2,3-dihydro-7H-oxazolo[3,2-a]pyrimidin-2-ylmethyl ester

There total 4 articles about toluene-4-sulfonic acid (S)-5-(1,1-difluoro-propyl)-7-oxo-2,3-dihydro-7H-oxazolo[3,2-a]pyrimidin-2-ylmethyl 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: 23.0%

: 1058159-93-5
toluene-4-sulfonic acid (S)-2-amino-4,5-dihydro-oxazolo-5-ylmethyl ester

: 112780-02-6
methyl 4,4-difluoro-2-hexynoate

: 1278585-40-2
toluene-4-sulfonic acid (S)-5-(1,1-difluoro-propyl)-7-oxo-2,3-dihydro-7H-oxazolo[3,2-a]pyrimidin-2-ylmethyl ester

Guidance literature:: In ethanol; for 2.5h; Reflux;

Reference yield:

: 112780-04-8
methyl 4-hydroxyhex-2-yneoate

: 1278585-40-2
toluene-4-sulfonic acid (S)-5-(1,1-difluoro-propyl)-7-oxo-2,3-dihydro-7H-oxazolo[3,2-a]pyrimidin-2-ylmethyl ester

Guidance literature:: Multi-step reaction with 3 steps

1: Dess-Martin periodane / dichloromethane / 24 h / 20 °C

2: diethylamino-sulfur trifluoride / dichloromethane / 18 h / 20 °C

3: ethanol / 2.5 h / Reflux

With diethylamino-sulfur trifluoride; Dess-Martin periodane; In ethanol; dichloromethane;

Reference yield:

: 90407-66-2
4-oxo-hex-2-ynoic acid methyl ester

: 1278585-40-2
toluene-4-sulfonic acid (S)-5-(1,1-difluoro-propyl)-7-oxo-2,3-dihydro-7H-oxazolo[3,2-a]pyrimidin-2-ylmethyl ester

Guidance literature:: Multi-step reaction with 2 steps

1: diethylamino-sulfur trifluoride / dichloromethane / 18 h / 20 °C

2: ethanol / 2.5 h / Reflux

With diethylamino-sulfur trifluoride; In ethanol; dichloromethane;