2-Indanol → [2-(Indan-2-yl)oxy-5-oxo-tetrahydro-furan-3-yl]-carbamic acid allyl ester

HRID 900616Notes

Reaction equation

C([O:5][C:6](=[O:18])[CH2:7][CH:8]([NH:11][C:12]([O:14][CH2:15][CH:16]=[CH2:17])=[O:13])[CH2:9][OH:10])(C)(C)C.[CH2:19]1[C:27]2[C:22](=[CH:23][CH:24]=[CH:25][CH:26]=2)[CH2:21][CH:20]1O>>[CH2:15]([O:14][C:12](=[O:13])[NH:11][CH:8]1[CH2:7][C:6](=[O:5])[O:18][CH:9]1[O:10][CH:20]1[CH2:19][C:27]2[C:22](=[CH:23][CH:24]=[CH:25][CH:26]=2)[CH2:21]1)[CH:16]=[CH2:17]

Participants

Reactant 2

HCID 779362-Indanol

HCID 542397063-Allyloxycarbonylamino-4-hydroxy-butyric acid tert-butyl ester

Product 1

HCID 18465795[2-(Indan-2-yl)oxy-5-oxo-tetrahydro-furan-3-yl]-carbamic acid allyl esterYield 65%

Procedure

Prepared from 3-allyloxycarbonylamino-4-hydroxy-butyric acid tert-butyl ester (5.2 gram, 20 mmol) as described for 40 using 2-indanol (8.05 gram, 60 mmol) to afford 4.10 grams (65% yield) of the title compound as a mixture of epimers. Purification provided 1.76 gram (28% yield ) of the 4(S), 5(R) epimer as a yellow oil. 1H NMR (500 MHz, CDCl3) δ 2.42 (dd, J=17.2, 10.5 Hz, 1H), 2.79 (dd, J=17.2, 8.4 Hz, 1H), 2.99 (dd, J=16.7, 4.1 Hz, 1H), 3.04 (dd, J=16.7, 4.1 Hz, 1H), 3.22 (dd, J=17.2, 6.6 Hz, 1H), 3.26 (dd, J=17.2, 6.6 Hz, 1H), 4.53 (m, 3H), 4.70 (m, 1H), 5.20 (m, 2H), 5.60 (d, J=5.3 Hz, 1H), 5.87 (m, 1H), 7.17 (m, 4H) ppm. LC-MS (ES+): m/e=318 (M+H). Analytical HPLC (C18 column): 17.094 min.

Sources & evidence

ORD record: ord-c17a01963cc0488e856ac928796d287d
Source dataset: uspto-grants-2008_04
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US07358273B2

Reaction notes

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