Succinic acid, 2,3-Dimethyl

Butanedioic acid, 2,3-dimethyl- succinic acid, 2,3-dimethyl- H00C-CH(CH3)-CH(CH3)-C00H 2356, 3560, 3561, 4249 ... 

XXVIIIa l(+)-Dimethoxy-succinic acid (Dimethyl-L-threarie acid XXVIIIb d(—)-Dimethoxy-succinic acid (Dimethyl-D-threaric acid)... 

AI3-02480 Butanedioic acid, dimethyl ester CCRIS 4803 Dimethyl butanedioate Dimethyl succinate EINECS 203-419-9 FEMA No. 2396 HSDB 5370 Methyl butanedioate Methyl succinate NSC 52209 Succinic acid, dimethyl ester. Light and heat stabilizer for polyolefins, ABS polymer systems, flexible PVC, food packaging chemical intermediate. Liquid mp = 19° bp = 196.4° d = 1.0020 very soluble in Me2CO, CeHe, EtzO. Ashland Chemie Linz N. Am. DuPont Fluka Lancaster Synthesis Co. Penta Mfg. Sigma-Aldrich Fine Chem. 

Diacid pH 8 0.018 1.8 X 10 445 day Thio succinic acid, dimethyl phosphorodithioic acid... 

Methyl succinate Succinic acid, dimethyl ester Enpirical CsHwO,... 

Succinic acid anhydride. See Succinic anhydride Succinic acid, dimethyl ester. See Dimethyl succinate Succinic acid, hydroxy-. See N-Hydroxysuccinic acid Succinic acid, sulfo-, tallow ester, disodium salt See Disodium tallow sulfosuccinamate... 

The dependence of the glass-transition temperature on the copolymer composition varies with the chemical structure of the comonomer unit. Copolymerization with methyl succinic acid, dimethyl succinic acid, adipic acid, and propanediol results in a decreased glass-transition temperature, whereas copolymerization with benzyl succinic acid and terephthalic acid brings about an increased glass-transition temperature, as shown in Fig. 11. 

Senecic acid, K23.1 Intergerrinecic acid, K23.1 Peroxycamphoric acid, K 10.1 2-Ethyl-2-formylmethyl succinic acid dimethyl ester, A"48.4... 

Chemical name (1,6-hexanediamine, N,N -bis(2,2,6,6-tetramethyl-4-piperidinyl)-, polymer with 2,4,6-trichloro-1,3,5-triazine, reaction products with, 1-(2-hydroxyethyl)-4-hy-droxy-2,2,6,6-tetramethyl piperidine-succinic acid, dimethyl ester,copolymer) ... 

HYDROXYETHYL)-4-HYDROXY-2.2,6,6-TETRAMETHYLPIPERIDINE-SUCCINIC ACID. DIMETHYL ESTER, COPOLYMER (M.W.1500-5000)... 

Figure 13.2 Gas chromatogram of linear polybntylene succinate after 12 weeks in water at 70 C. The identity of the numbered peaks is (1) succinic acid, dimethyl estei (2) glntaric acid, dimethyl ester (internal standard), (3) 1,4-butanediol,...

Di lve 20 g. of the cyano ester in 100 ml. of rectified spirit and add a solution of 19 2 g. of pure potassium cyanide in 40 ml. of water. Allow to stand for 48 hours, then distil oflF the alcohol on a water bath. Add a large excess of concentrated hydrochloric acid and heat under reflux for 3 hours. Dilute with water, saturate the solution with ammonium sulphate, and extract with four 75 ml. portions of ether. Dry the combined ethereal extracts with anhydrous sodium or magnesium sulphate, and distil off the ether. RecrystaUise the residual acid from excess concentrated hydrochloric acid, and dry in the air. The yield of pure ew-dimethyl-succinic acid, m.p. 141-142°, is 12 g. 

Dimethyl peroxide Diethyl peroxide Di-t-butyl-di-peroxyphthalate Difuroyl peroxide Dibenzoyl peroxide Dimeric ethylidene peroxide Dimeric acetone peroxide Dimeric cyclohexanone peroxide Diozonide of phorone Dimethyl ketone peroxide Ethyl hydroperoxide Ethylene ozonide Hydroxymethyl methyl peroxide Hydroxymethyl hydroperoxide 1-Hydroxyethyl ethyl peroxide 1 -Hydroperoxy-1 -acetoxycyclodecan-6-one Isopropyl percarbonate Isopropyl hydroperoxide Methyl ethyl ketone peroxide Methyl hydroperoxide Methyl ethyl peroxide Monoperoxy succinic acid Nonanoyl peroxide (75% hydrocarbon solution) 1-Naphthoyl peroxide Oxalic acid ester of t-butyl hydroperoxide Ozonide of maleic anhydride Phenylhydrazone hydroperoxide Polymeric butadiene peroxide Polymeric isoprene peroxide Polymeric dimethylbutadiene peroxide Polymeric peroxides of methacrylic acid esters and styrene... 

L-dihydroxy-succinic acid (L(dexiro)-tartaric acid, CXIII). This result establishes the position of the double bond between C4 and C5 and demonstrates that C4 carries only one hydrogen atom while C5 has attached to it the enolic hydroxyl group. Treatment of the enol CXI with ethereal diazomethane gives 5-methyl-A4-D-glucosaccharo-3,6-lactone methyl ester (CXIY) which upon further methylation with silver oxide and methyl iodide yields 2,5-dimethyl-A4-D-glucosaccharo-3,6-lactone methyl ester (CXV). When the latter is subjected to ozonolysis there is formed oxalic acid and 3-methyl-L-threuronic acid (CXVI). Oxidation of this aldehydic acid (CXYI) with bromine gives rise to a monomethyl derivative (CXVII) of L-ilireo-dihydroxy-succinic acid. 

RuCl2(PPh3)2 Maleic acid 100 Dimethyl- acetamide 1 Succinic acid 100 35 100 10 b) 4... 

Sodium toluene dispersion of, 55, 65 Sodium p-toluenesulfinate, 57, 103 Spiro[4 n] alkenones, 58, 62 Spiro[cyclopentane-l,l -indene] 55, 94 Squalene, 56, 116 Squalene, 2,3-epoxy, 56, 116 Stannic chloride, 56, 97 Steroids synthesis, 58, 85 E Stilbene, 55, 115,58, 73 z-Stilbene, 58, 133 Styrene, 56, 35,58, 43 Styrene glycol, 55, 116 Styrene glycol dimesylate, 55, 116 Succinic acid, 58, 85 Succinic anhydride, 58, 85 Sucunimide, 56, 50, 58, 126 Succimmide, Vbromo, 55, 28, 56, 49 SULFIDE CONTRACTION, 55, 127 Sulfide, dimethyl-, 56, 37 SULFIDE SYNTHESIS, 58, 143,58, 138 SULFIDE SYNTHESIS ALKYL ARYL SULFIDES, 58, 143 SULFIDE SYNTHFSIS DIALKYL SULFIDES, 58, 143 SULFIDE SYNTHESIS UNSYMMETRI-CAL DIALKYL DISULFIDES, 58, 147 SULFONYL CYANIDES, 57, 88 Sulfur tetrafluoride, 57, 51... 

Glularic Acid. Until 1990-1991 glularic acid was available commercially from DuPont as a by-product in the production of adipic acid. It is no longer available, but DuPont produces dimethyl glutaratc and mixtures of dimethyl succinate and dimethyl glutarate. as well as mixtures of dimethyl glutarate and dimethyl adipate. 

Actually the irradiation chemistry of even simple amino acids and peptides is much more complex than these equations imply, and many other radiochemical products have been reported (13, 14, 49). These include glyoxylic acid, formaldehyde, hydrogen peroxide, carbon dioxide, succinic acid, aspartic acid, diaminosuccinic acid, methylamine, methane, dimethyl mercaptan, a-aminobutyric acid, methionine sulfoxide, methinonine sul-fone, methionine sulfoxime, homocysteic acid, and several unidentified nitrogen compounds (46, 51). 

SUCCINIC ACID, HERCAPTO-, DIETHYL ESTER, S-ester with 0,0-DIMETHYL PHOSPHORODITHIOATB... 

In many fruit trees, especially apple, pear, and peach, the the extent of floral induction is increased by spraying them with inhibitors such as succinic acid-2,2-dimethyl hydrazine (sold by Uniroyal as Alar) and 2,3,5-triiodobenzoic acid. 

Among the most widely used plant growth regulators is succinic acid-2,2-dimethyl hydrazine (diaminozide), commonly referred to as Alar or SADH. Originally developed to reduce the... 

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