6954-27-4Relevant articles and documents
Preparation of linear aromatic disulfonic acids: New linker molecules for metal-organic frameworks
Muesmann, Thomas W.T.,Wickleder, Mathias S.,Christoffers, Jens
experimental part, p. 2775 - 2780 (2011/10/31)
Four linear aromatic disulfonic acids were prepared, which are structurally similar to dicarboxylic acids commonly used as linker molecules for metal-organic frameworks. 4,4-Biphenyldisulfonic acid was prepared in three steps from 4,4-dibromobiphenyl (54% overall yield). Direct sulfonation of terphenyl gave the respective all-para-constituted disulfonic acid in 73% yield. Tolane-4,4-disulfonic acid was obtained by a three-step sequence consisting of Sonogashira coupling, oxidative degradation of a thioester, and hydrolysis in 20% overall yield. By using a Glaser coupling, the bis(4-sulfophenyl)butadiyne was analogously prepared in 30% overall yield. Georg Thieme Verlag Stuttgart - New York.
Reductive desulfurization of organosulfur compounds with sodium in liquid ammonia
Yu, Zhengkun,Verkade, John G.
, p. 79 - 82 (2007/10/03)
Greater than 95% sulfur removal was observed when dialkyl mono or polysulfides were treated with Na in liquid ammonia. Polycyclic aromatic sulfur heterocycles were only moderately desulfurized under these conditions while phenylthio derivatives gave thiophenol as the major product and dithiophenols as the minor products.
Process for preparation of aromatic thiols
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, (2008/06/13)
Disclosed is a process for preparation of an aromatic thiol corresponding to the structure wherein A is a substituted or unsubstituted aromatic radical and n is 1, 2, 3, 4, 5 or 6 comprising contacting at a temperature of at least 80° C. an aromatic halide corresponding to the structure wherein A is the same as above, X is bromine or iodine and n is 1, 2, 3, 4, 5, or 6 with thiourea in the presence of nickel metal.