Benzyl mercaptan → HCID 86687466, compound

HRID 1473417Notes

Reaction equation

[Br:1][C:2]1[C:11]2[C:6](=[CH:7][C:8](Br)=[CH:9][CH:10]=2)[CH:5]=[N:4][CH:3]=1.CCN(C(C)C)C(C)C.CC1(C)C2C(=C(P(C3C=CC=CC=3)C3C=CC=CC=3)C=CC=2)OC2C(P(C3C=CC=CC=3)C3C=CC=CC=3)=CC=CC1=2.[CH2:64]([SH:71])[C:65]1[CH:70]=[CH:69][CH:68]=[CH:67][CH:66]=1>C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.[Pd].[Pd].O1CCOCC1>[CH2:64]([S:71][C:8]1[CH:7]=[C:6]2[C:11]([C:2]([Br:1])=[CH:3][N:4]=[CH:5]2)=[CH:10][CH:9]=1)[C:65]1[CH:70]=[CH:69][CH:68]=[CH:67][CH:66]=1

Participants

Conditions

Temperature: 60 °C

Procedure

To a vial charged with 4,7-dibromoisoquinoline (Pharmabridge, Inc., Doylestown, Pa.) (0.783 g, 2.73 mmol) was added dioxane (10.91 ml), DIEA (0.953 ml, 5.46 mmol), Xantphos (0.316 g, 0.546 mmol), Pd2(dba)3 (0.250 g, 0.273 mmol) and benzyl mercaptan (0.323 ml, 2.73 mmol). The vessel was sealed and heated to 60° C. for 4 hrs affording conversion to desired product as the primary species. The mixture was dried under reduced pressure and the crude material purified with a 40 HP silicycle column (SiliCycle, Inc. Quebec City, Canada) ramping EtOAc in heptane (0 to 25%, then isocratic at 25%, with 10% DCM isocratic throughout) providing product 7-(benzylthio)-4-bromoisoquinoline (0.573 g, 1.735 mmol, 63.6% yield), obtained as an orange solid. m/z (ESI) 330.2 (M+H)+.

Workup

customThe vessel was sealed

Sources & evidence

ORD record: ord-cf828ab8c67e4106ac8642a6e92a1963
Source dataset: uspto-grants-2015_04
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US09012443B2

Reaction notes

Loading…