Acid Ester from alcohol

Oxidations with bromine-bromate Carboxylic acid esters from alcohols ... 

This was the appearance of publications by W. Reppe and co-workers in followed by Badische Anilin und Soda Fabrik patents/ They showed that various triphenylphosphine complexes of nickel, especially [Ni(CO)2(PPh5)2](Ph = QHs), were more effective than other nickel complex catalysts for the polymerization of olefinic and acetylenic substances and that others, especially [NiBr2(PPh3)2], catalyzed the formation of acrylic acid esters from alcohols (ROH), acetylene, and carbon monoxide ... 

Sulfenic acid esters from alcohols and reverse reaction Protection of nucleoside hydroxyl... 

Formamides. Aniline in methylene chloride treated with N-formylformamide (formed in the ozonolysate of oxazole at —78°) at room temp, for 1 h - product. Y 87%. No catalysts are required, and only the readily removable and neutral formamide was obtained as by-product. F.e. inch formylation of aliphatic amines, also formic acid esters from alcohols, s. C. Kashima et al.. Tetrahedron Letters 30, 1561-2 (1989). 

Diazabicy do [5.4.0 ]undec-7-ene Monothiolcarbonic acid esters from alcohols and halides Carbonylation... 

Without additional reagents Nitric acid esters from alcohols s. 17,149... 

Monothiolcarbonic acid esters from alcohols OH OCOSR... 

Amorphous Se added to a soln. of -butylamine in tetrahydrofuran, CO introduced, after ca. 5 min. when the Se has dissolved oxygen or air introduced simultaneously with CO for 4 hrs., then the CO-flow stopped and the Og-flow continued to precipitate Se -> l,3-di- -butylurea. Y ca. 100%. F. e., also 2-imidazolidone from ethylenediamine (cf. Synth. Meth. 3, 375), s. N. Sonoda et al.. Am. Soc. 93, 6344 (1971) sym. carbonic acid esters from alcohols in the presence of Na-alkoxide s. Tetrah. Let. 7977,4885 urethans from alcohols, amines, and CO s. Chem. Lett. 1972, 373 (Eng) carbonylation of amines in the presence of Ag-acetate, sym. ureas from prim, amines and sym. oxamides from sec. amines, s. T. Tsuda, Y. Isegawa, and T. Saegusa, J. Org. Chem. 37, 2670 (1972). 

Methanesulfonic acid esters from alcohols s. H, 823 partial s. 13, 232 preferential s. 14, 162 O-Mesylation and 0-tosylation s. U, 344 0-Tosylation... 

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