2, 3-Dihydro-1, 4-benzodioxanes with aryl 8-aza-bicyclo [3.2. 1] oct-3-ene attachments 2 produce compounds with potent 5-HT-T affinity, and weak 5-HT1A affinity and α1 affinity. This compares with 2, 3-dihydro-1, 4-benzodioxanes containing 8-aza-bicyclo [3.2. 1] octan- 3-ol attachments 4 which possess potent 5-HT1A affinity, moderate to good selectivity over α1 and little 5-HT-T affinity. A 3-benzothiophene analogue of 4 (30) was synthesized ...