274251-50-2Relevant academic research and scientific papers
Synthesis of aryl sulfonamides via palladium-catalyzed chlorosulfonylation of arylboronic acids
Debergh, J. Robb,Niljianskul, Nootaree,Buchwald, Stephen L.
, p. 10638 - 10641 (2013/08/23)
A palladium-catalyzed method for the preparation of sulfonamides is described. The process exhibits significant functional group tolerance and allows for the preparation of a number of arylsulfonyl chlorides and sulfonamides under mild conditions.
Tetracyclic compound having lateral halogen substituent and liquid crystal composition comprising the same
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, (2008/06/13)
A tetracyclic compound expressed by the following general formula (1) wherein H1to H12represent hydrogen atom at least one of which is replaced by a halogen atom, when either H6or H8is replaced by a halogen atom, at least one of the remaining hydrogen atoms is replaced by a halogen atom; R1and Y1independently represent an alkyl group, alkoxy group, or alkoxyalkyl group having 1 to 20 carbon atoms, or an alkenyl group having 2 to 20 carbon atoms, one or more methylene group in R1and Y1may be replaced by oxygen atom, sulfur atom, dihydrosilylene group, dimethylsilylene group, —CH═CH—, or —C≡C—; and X1, X2, and X3independently represent a covalent bond, 1,2-ethylene group, or 1,4-butylene group; and a novel liquid crystal composition comprising the tetracyclic compound and having, at the same time, a wide temperature range of a nematic phase, high optical anisotropy, and high chemical stability.
