3354-42-5Relevant articles and documents
Sulfur/DABCO Promoted Reductive Coupling/Annulation Cascade Reaction between o -Hydroxy/Amino Nitrobenzenes and Benzaldehydes
Dang, Minh-Huy Dinh,Nguyen, Linh Ho Thuy,Tran, Phuong Hoang
supporting information, p. 1687 - 1694 (2020/05/25)
Sulfur/DABCO was found to be an efficient reagent in promoting- the reductive coupling/annulation of o -nitrophenols or o -nitroanilines with benzaldehydes. This method represents a simple, straightforward, and green approach to the construction of benz-oxazoles and benzimidazoles.
STUDIES ON ORGANOPHOSPHORUS COMPOUNDS-XXXVI SIMPLE NEW ROUTES TO PHOSPHORINS FROM 2-HYDROXY-, 2-MERCAPTO-, AND 2-AMINOBENZOIC ACIDS AND THEIR DERIVATIVES
El-Barbary, A. A.,Lawesson, S.-O.
, p. 2641 - 2646 (2007/10/02)
2-Hydroxybenzoic acid heated with 2,4-bis(4-methoxyphenyl)-1,3,2,4-dithiadiphosphetane-2,4-disulfide, 1, gave 2-(p-methoxyphenyl)-4H-1,3,2-benzoxathiaphosphorin-4-one 2-sulfide, 3, and its thio analogue, 4, while its ethyl or phenyl esters gave 4 as the sole product. 2-Mercaptobenzoic acid and its ethyl ester when heated with 1 produced 3H-1,2-benzodithiole-3-one, 8, 3H-1,2-benzidithiole-3-thione, 9, and 2-(p-methoxyphenyl)-4H-1,3,2-benzodithia-phosphorin-4-one 2-sulfide, 10.The reaction of 2-aminobenzoic acid with 1 gave 1,2-dihydro-2-(p-methoxyphenyl)-4H-3,1,2-benzoxaphosphorin-4-one 2-sulfide, 12.Reactions of 1 with methyl 2-aminobenzoate and 2-aminobenzamides are described.Mechanistic considerations for the formation of the heterocyclic phosphorus compounds are presented.
STUDIES ON ORGANOPHOSPHORUS COMPOUNDS. THIATION OF 3,1-BENZOXATHIAN-4-ONES. NEW ROUTES TO 1,2-BENZISOTHIAZOLE-3(2H)-THIONES AND 3H-1,2-BENZODITHIOL-3-IMINES
El-Barbary, A. A.,Clausen, K.,Lawesson, S.-O.
, p. 3309 - 3316 (2007/10/02)
3,1-Benzoxathian-4-ones, 2, when heated with 2,4-bis(4-methoxyphenyl)-1,3,2,4-dithiadiphosphetane-2,4-disulfide, 1, or with P4S10 give one or more of the following products: 3,1-benzoxathian-4-thione, 3, 1,3-benzodithian-4-one, 4, 1,3-benzodithian-4-thion