Di-n-butyl oxalate

Di-n-butyl oxalate Ethanedioic acid, dibutyl ester... 

Successful results have been obtained (Renfrew and Chaney, 1946) with ethyl formate methyl, ethyl, n-propyl, iso-propyl, n-butyl, iso-butyl, sec.-butyl and iso-amyl acetat ethyleneglycol diacetate ethyl monochloro- and trichloro-acetates methyl, n-propyl, n-octyl and n-dodecyl propionates ethyl butyrate n-butyl and n-amyl valerates ethyl laurate ethyl lactate ethyl acetoacetate diethyl carbonate dimethyl and diethyl oxalates diethyl malonate diethyl adipate di-n-butyl tartrate ethyl phenylacetate methyl and ethyl benzoates methyl and ethyl salicylates diethyl and di-n-butyl phthalates. The method fails for vinyl acetate, ieri.-butyl acetate, n-octadecyl propionate, ethyl and >i-butyl stearate, phenyl, benzyl- and guaicol-acetate, methyl and ethyl cinnamate, diethyl sulphate and ethyl p-aminobenzoate. 

UN 3082, see Benzyl butyl phthalate, Bis(2-ethylhexyl) phthalate, Di-n-butyl phthalate, 2-Methylnaphthalene UN 3143, see 2-Acetylaminofluorene, p-Dimethylaminoazobenzene UN 3155, see Pentachlorophenol UN 3261, see Oxalic acid UN 9037, see Hexachloroethane UN 9094, see Benzoic acid UN 9095, see Di-n-butyl phthalate... 

The N(4) atom of the side-chain piperazino group of 187 (R = Et, R = piperazino) was acylated with di-/cr/-butyl oxalate. 3-Decarboxylated products (187) were prepared from 186 under different reaction conditions in 44-81% yield (see Scheme 4) [95T11125]. The ester group of 187(R = Et) was hydrolyzed in boiling acetic acid in the presence of concentrated hydrochloric acid to give 3-carboxylic acids (187, R = H). 

Kuhlman [5] re-polymerized macrocyclic ester oligomers in the presence of di-n-butyl tin oxalate, which had up to a 2 minute latency period and was followed by a rapid polymerization similar to that of di-n-butyltin glycolate. 

In none of the above examples where tetrahedral intermediates have been shown to be kinetically important is it possible to demonstrate an accumulation of the tetrahedral intermediate by spectrophotometric means. The tetrahedral intermediate has been observed directly only under nonhydrolytic conditions (Bender, 1953). When metal alkoxides are added to haloacetic acid esters or diethyl oxalate in di-n-butyl ether, the resulting heterogeneous system shows a diminution in intensity of the carbonyl stretching band in the infrared. The equilibrium towards the addition intermediate is greatest for the more negatively substituted esters, as would be expected. The parent haloacetic acids do not exhibit... 

Dl-n-butyl oxalate. See Dibutyl oxalate Dl-s-butyl oxalate. See Diisobutyl oxalate 2,2-Dlbutyl-1-oxa-2-stanna-3-thiacyclohexan-6-one. See DIbutyltin p-mercaptopropionate DIbutyloxide. See Dibutyl ether N,N -Dlbutyl-2-[1-oxododecylamino]-pentadiamide. See Dibutyl lauroyl qlutamide Dibutyloxostannane Dibutyloxotin. See DIbutyltin oxide Di-t-butyl peroxide... 

C12 dibasic acid Diamyl oxalate Di-n-butyl succinate Diisopropyl adipate Dimethyl sebacate Dipropyl adipate Ci2H2204Zn Zinc gluconate C12H22O5... 

M-Butyl formate. Ethyl iso-butyrate IsO -butyl acetate Ethyl butyrate -Propyl propionate Iso-amyl formate, -But> l acetate Iso-propyl butyrate Iso-butyl propionate n-Propyl -butyrate -Butyl propionate Iso-butyl isobutyrate Ethyl lactate Iso-butyl butyrate Cycloheicyl formate -Butyl -butyrate Iso-propyl lactate. Cyclohexyl acetate Diethyl oxalate Di-iao-propyl oxalate... 

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