Morpholine → 1-Acetyl-6-(4-morpholinyl)-1,2-dihydrospiro[indole-3,3'-thietane]1',1'-dioxide

Participants

Reaction Conditions

Reaction Steps

To a microwave vessel was added sodium tert-butoxide (0.045 g, 0.466 mmol), morpholine (0.030 mL, 0.350 mmol), XPhos, Pd2(dba)3 (0.021 g, 0.023 mmol), and 1-acetyl-6-bromo-1,2-dihydrospiro[indole-3,3′thietane]1′,1′-dioxide (0.077 g, 0.233 mmol) in 1,4-dioxane (2.3 mL). The suspension was deoxygenated with argon for 5 min and stirred at 110° C. for 90 min under microwave irradiation. The crude mixture was loaded directly onto a silica gel column (eluting with a gradient of 0-10% MeOH in DCM) to give 1-acetyl-6-(4-morpholinyl)-1,2-dihydrospiro[indole-3,3′-thietane]1′,1′-dioxide as a tan oil. Mass Spectrum (ESI) m/e=337.1 (M+1).

Provenance & Evidence