10.1021/om200400j.s002 Ahleah D. Rohr Ahleah D. Rohr Mark M. Banaszak Holl Mark M. Banaszak Holl Jeff W. Kampf Jeff W. Kampf Arthur J. Ashe Arthur J. Ashe 2<i>H</i>-1,2-Thiaborin: A New Boron–Sulfur Heterocycle American Chemical Society 2011 diisopropylamino heterocyclic ring 2 equiv HeterocycleThe New CH 2Cl LDA Boron delocalized 2 c DFT calculations spectroscopically dihydro 2011-07-25 00:00:00 Dataset https://acs.figshare.com/articles/dataset/2_i_H_i_1_2_Thiaborin_A_New_Boron_Sulfur_Heterocycle/2629064 The reaction of 2,5-dihydro-2-diisopropylamino-1,2-thiaborole (<b>5</b>) with 2 equiv of LDA followed by CH<sub>2</sub>Cl<sub>2</sub> gives 2-(diisopropylamino)-2<i>H</i>-1,2-thiaborin (<b>2c</b>), which has been spectroscopically and structurally characterized. DFT calculations indicate that formally aromatic <b>2c</b> has a limited π-delocalized bonding in its heterocyclic ring.