ChemicalBook CAS DataBase List L-Proline, 5-methyl-, ethyl ester, (5S)- (9CI)

L-Proline, 5-methyl-, ethyl ester, (5S)- (9CI) synthesis

4synthesis methods

Product Name:L-Proline, 5-methyl-, ethyl ester, (5S)- (9CI)
CAS Number:676560-84-2
Molecular formula:C8H15NO2
Molecular Weight:157.21

1,2-Pyrrolidinedicarboxylic acid, 5-Methoxy-, 1-(1,1-diMethylethyl) 2-ethyl ester, (2S)-

194594-24-6
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L-Proline, 5-methyl-, ethyl ester, (5S)- (9CI)

676560-84-2
25 suppliers
$533.12/1g

Yield:-

Steps:

Multi-step reaction with 2 steps
1: 1.) CuBr*Me₂S, 2.) BF₃*OEt₂ / 1.) ether, -40 deg C, 45 min, 2.) -78 deg C, 30 min; 15 min; -78 deg C to room temp., 3 h; room temp., 1 h
2: TFA / CH₂Cl₂ / Ambient temperature

References:

Collado, Ivan;Ezquerra, Jesus;Pedregal, Concepcion [Journal of Organic Chemistry,1995,vol. 60,# 16,p. 5011 - 5015]

(2S)-3,4-dihydro-5-Methyl-2H-Pyrrole-2-carboxylic acid ethyl ester

896733-29-2
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676560-84-2
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References

913251-58-8 Synthesis

(S)-2-tert-butoxycarbonylamino-5-oxo-hexanoic acid ethyl ester

913251-58-8
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676560-84-2
25 suppliers
$533.12/1g

References

1,2-Pyrrolidinedicarboxylic acid, 5-hydroxy-, 1-(1,1-diMethylethyl) 2-ethyl ester, (2S)-

194594-23-5
15 suppliers
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676560-84-2
25 suppliers
$533.12/1g

References

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