Dimethylformamide → 4-(6-(1-(Benzo[d][1,3]dioxol-5-yl)cyclopropanecarboxamido)pyridin-2-yl)benzene-1-sulfonyl chloride

HRID 1505129

Reaction equation

[O:1]1[C:5]2[CH:6]=[CH:7][C:8]([C:10]3([C:13]([NH:15][C:16]4[N:21]=[C:20]([C:22]5[CH:27]=[CH:26][C:25]([S:28]([OH:31])(=O)=[O:29])=[CH:24][CH:23]=5)[CH:19]=[CH:18][CH:17]=4)=[O:14])[CH2:12][CH2:11]3)=[CH:9][C:4]=2[O:3][CH2:2]1.O=S(Cl)[Cl:34].CN(C=O)C>O=P(Cl)(Cl)Cl>[O:1]1[C:5]2[CH:6]=[CH:7][C:8]([C:10]3([C:13]([NH:15][C:16]4[N:21]=[C:20]([C:22]5[CH:27]=[CH:26][C:25]([S:28]([Cl:34])(=[O:31])=[O:29])=[CH:24][CH:23]=5)[CH:19]=[CH:18][CH:17]=4)=[O:14])[CH2:12][CH2:11]3)=[CH:9][C:4]=2[O:3][CH2:2]1

Participants

Conditions

Temperature: 75 °C

Procedure

4-(6-(1-(Benzo[d][1,3]dioxol-5-yl)cyclopropanecarboxamido)pyridin-2-yl)benzenesulfonic acid (1.9 g, 4.3 mmol) was dissolved in POCl3 (30 mL) followed by the addition of SOCl2 (3 mL) and DMF (100 μl). The reaction mixture was heated at 70-80° C. for 15 min. The volatiles were evaporated and then re-evaporated with chloroform-toluene. The residual brown oil was diluted with chloroform (22 mL) and used for sulfonylation immediately. ESI-MS m/z calc. 456.0, found 457.1 (M+1).

Workup

customThe volatiles were evaporated
customre-evaporated with chloroform-toluene
additionThe residual brown oil was diluted with chloroform (22 mL)

Sources & evidence

ORD record: ord-0830677d39fb44aeaa3db459866e5228
Source dataset: uspto-grants-2015_12
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US09216969B2

Linked notes

Loading…