2-Naphthylamine → HCID 86607482, compound

HRID 14430

Reaction equation

C(=O)([O-])O[CH2:3][CH:4]=[CH:5][C:6]1[CH:11]=[CH:10][CH:9]=[CH:8][CH:7]=1.[CH:14]1[C:23]2[C:18](=[CH:19][CH:20]=[CH:21][CH:22]=2)[CH:17]=[CH:16][C:15]=1[NH2:24]>>[C:4]([CH:5]([C:6]1[CH:11]=[CH:10][CH:9]=[CH:8][CH:7]=1)[NH:24][C:15]1[CH:16]=[CH:17][C:18]2[C:23](=[CH:22][CH:21]=[CH:20][CH:19]=2)[CH:14]=1)#[CH:3]

Participants

Reactant 2

HCID 70572-Naphthylamine

HCID 71446589Cinnamyl carbonate

Product 1

HCID 86607482HCID 86607482, compoundYield 89.3%

Procedure

The general procedure was followed with cinnamyl carbonate (0.188 g, 0.979 mmol) and 2-napthylamine (0.170 g, 1.18 mmol). The reaction was conducted at room temperature for 16 h. 1H NMR analysis of the crude reaction mixture indicated the ratio of regioisomers to be 99/1. The mixture was purified by flash column chromatography on silica gel (1.5% ethyl acetate in hexanes) to give the title compound (0.225 g, 89%). [α]DRT=(c, CHCl3). 1H NMR (400.13 MHz, CDCl3) δ 7.53 (d, J=8.0 Hz, 1H), 7.48 (d, J=8.0 Hz, 1H), 7.42 (d, J=8.0 Hz, 1H), 7.31-7.11 (m, 6H), 7.06 (t, J=7.6 Hz, 1H), 6.76 (dd, J=9.0, 2.2 Hz, 1H), 6.64 (d, J=2.0 Hz, 1H), 5.95 (ddd, J=17.2, 10.4, 6.0 Hz, 1H), 5.20 (d, J=17.6 Hz, 1H), 5.13 (d, J=9.6 Hz, 1H), 4.94 (d, J=5.6 Hz, 1H), 4.06 (br s, 1H). 13C NMR (100.59 MHz, CDCl3) δ 144.65, 141.52, 138.63, 134.90, 128.74, 128.73, 127.53, 127.48, 127.45, 127.14, 126.18, 125.99, 122.04, 118.02, 116.16, 105.82, 60.18. Anal. Calcd for C19H17N: C, 87.99; H, 6.61; N, 5.40. Found: C, 88.16; H, 6.58; N, 5.41.

Workup

custom1H NMR analysis of the crude reaction mixture
customThe mixture was purified by flash column chromatography on silica gel (1.5% ethyl acetate in hexanes)

Sources & evidence

ORD record: ord-8486f8fa9c3b4c1bad74f352f03d9cd7
Source dataset: uspto-grants-2010_06
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US07732365B2

Linked notes

Loading…