1-Aminocyclopropane-1-carboxylic acid → HCID 24798411, compound

HRID 492054Notes

Reaction equation

HRID 492054 reaction equation
[CH2:1]1[C:3]([NH2:7])([C:4]([OH:6])=[O:5])[CH2:2]1.Cl[Si](C)(C)C.CCN(C(C)C)C(C)C.Cl[CH:23]([O:25][C:26](Cl)=[O:27])[CH3:24].[C:29]([OH:39])(=[O:38])/[CH:30]=[CH:31]/[C:32]1[CH:37]=[CH:36][CH:35]=[CH:34][CH:33]=1>C(Cl)(Cl)Cl>[C:32]1(/[CH:31]=[CH:30]/[C:29]([O:39][CH2:24][CH2:23][O:25][C:26]([NH:7][C:3]2([C:4]([OH:6])=[O:5])[CH2:2][CH2:1]2)=[O:27])=[O:38])[CH:33]=[CH:34][CH:35]=[CH:36][CH:37]=1

Participants

7

Reactant 5

HCID 5351-Aminocyclopropane-1-carboxylic acidHCID 6397ChlorotrimethylsilaneHCID 81531Diisopropylethylamine2×HCID 444539Cinnamic AcidHCID 5213051-Chloroethyl chloroformate

Product 1

HCID 24798411HCID 24798411, compoundYield 16.6%

Reagents, catalysts & solvents 1

HCID 6212ChloroformSolvent

Procedure

Following the general procedure for the one pot synthesis, ACPC (0.4 g, 3.9 mmol) was reacted with chlorotrimethylsilane (0.99 mL, 7.88 mmol) in anhydrous chloroform (10 mL) in the presence of DIEA (1.45 mL, 7.8 mmol). Subsequent reaction of the intermediate with 1-chloroethylchloroformate (0.83 mL, 5.85 mmol) followed by a mixture of DIEA (1.45 mL, 7.8 mmol) and trans-cinnamic acid (1.16 g, 7.88 mmol) provided 0.200 g (16.6% yield) of the title compound (16) as a buff-colored solid after aqueous work-up and mass-guided preparative HPLC purification. M.p: 169.3-172.2° C. 1H NMR (CDCl3, 400 MHz): δ=7.71-7.67 (d, 1H, J=15.6), 7.50 (d, 2H), 7.38 (m, 3H), 6.95 (q, 1H), 6.40 (d, 1H, J=16), 5.58 (s, 0.3H), 5.34 (s, 0.7H), 1.60-1.54 (m, 5H), 1.27-1.24 (m, 2H). MS (ESI) m/z 342.00 (M+Na)+; 318.02 (M−H)−.

Sources & evidence

ORD record
ord-c299cb0edf144df894a1df6805575872
Source dataset
uspto-grants-2009_05
Patent number
US07531572B2

Reaction notes

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