Реакция #710533

Уравнение реакции

Methanesulfonic acid

(1R,2S)-1-(tert-butoxycarbonylamino)-2-vinyl-cyclopropanecarboxylic acid

triethylamine

→

titled compound

(1R,2S)-1-amino-2-vinyl-cyclopropanecarboxylic acid

Растворители

methylene chloride

Условия реакции

Обработка

1. 1
   Другоеa solid was precipitated
2. 2
   ДругоеThe solid was sufficiently precipitated
3. 3
   workup.STIRRINGthe solution was stirred at 25° C. for 30 minutes
4. 4
   ДругоеThereafter, the solid was separated by filtration under reduced pressure
5. 5
   ПромывкаThe solid was washed with methylene chloride (5 mL)
6. 6
   Другоеdrying

Методика

Methanesulfonic acid (576 mg, 6 mmol) was added to a solution of (1R,2S)-1-(tert-butoxycarbonylamino)-2-vinyl-cyclopropanecarboxylic acid (1135 mg, 5 mmol) and methylene chloride (5 mL), and the mixture was stirred at 25° C. for 3 hours. When triethylamine (708 mg, 7 mmol) was added thereto, a solid was precipitated. The solid was sufficiently precipitated, and then the solution was stirred at 25° C. for 30 minutes. Thereafter, the solid was separated by filtration under reduced pressure. The solid was washed with methylene chloride (5 mL), and then was subjected to vacuum drying. Thereby, the titled compound was produced as a white solid (665 mg, yield of 100%).

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