A New Series of Organoboranes. IX. The Preparation and Some Reactions of Sulfur-Carborane Derivatives

Substituent Effects on the Fluorescence Properties of ortho‐Carbor­anes: Unusual Emission Behaviour in C‐(2′‐Pyridyl)‐ortho‐carboranes

“…Syntheses: Compounds 1-3 were purchased commercially (KatChem) and purified by repeated sublimations, whereas 4, [68] 5, [69] 6, [68] 7, [69] 8, [70] 9, [71] 10, [71] 11, [72] 12, [73] 13, [74] 14, [74] 15, [72] 16 [75] and 17 [74] were prepared according to literature procedures. 13 Photophysical Measurements: Absorption spectra were measured from 200 to 600 nm (Δλ = 0.5 nm) with a Shimadzu absorption spectrometer.…”

Novel Group 9 Metal Complexes Containing an S,S'-Chelating o-Carboranyl Ligand System: Synthesis, Crystal Structures, and Electrochemical Properties of Dinuclear [{(cod)M}2(S,S'-S2C2B10H10)] (cod = 1,5-cyclooctadiene;M = Rh OR Ir)] and Mononclear Cp*CoI[S,S'-S(S=PMe2)C2B10H10] Metal Complexs

“…The following starting materials were prepared according to literature procedures: Li 2 S 2 C 2 B 10 H 10 (2a), 18 Cp*Co(CO)I 2 , 19 (PMe 2 )C 2 B 10 H 11 (1b), 20 [Rh(µ-Cl)(cod)] 2 , 21 and [Ir(µ-Cl)(cod)] 2 .…”

Four Decades of Organic Chemistry of closo-Boranes: A Synthetic Toolbox for Constructing Liquid Crystal Materials. A Review

“…Formation of the C-S bond can be effected by treatment of the C-lithium or C-sodium derivatives of ortho-carborane 4 (refs 89,[108][109][110][111] ), meta-carborane 5 (refs 108,109,111 ), para-carborane 6 (refs 82,103,109,111,112 ) and monocarbaborate 2 (ref. 67 ) with elemental sulfur 67,89,103,[108][109][110][111][112] , sulfur dioxide 103,108 , dialkyl disulfide 110 , or alkylsulfenyl halides 82 as shown for 35.…”

“…108 ). Alkylthio derivatives such as 35 undergo partial decomposition on silica 82 and are susceptible to attack and cleavage by alkyllithiums 110 and fluoride anion 82 . 1-Alkylthioortho-carboranes, however, have been reacted with BuLi and converted into the corresponding C-anions in high yields 113 .…”