Methyl magnesium carbonate

Other Reactions. a-Nitroalkanoic acids or thek esters can be prepared (54—56) by treating nitroparaffins with magnesium methyl carbonate, or with triisopropylaluminum and carbon dioxide. These products are reduced readily to a-amino acids. 

Magnesium methyl carbonate [Magnesium, methoxyOnethyl cjibonato-O-], 121 Maleic acid, methyl ester [2 Butenedioic acid, (Z)-, dimethyl ester], 63 Maganese, tricarbonyl [ (1,2,3,4,5-rj)-l -... 

Figure 24 Comparison of isothermal chemiluminescence intensity for pullulan (1) and pullulan impregnated by methoxy magnesium methyl carbonate (2) from a 5% solution in methanol initial molar mass of pullulan 404 kg/mol, oxygen atmosphere, temperature 190°C.

The carboxylation of nitroalkanes with magnesium methyl carbonate followed by esterification gives a-nitro esters in 40-58% yield.14 Magnesium methyl carbonate is prepared by the saturation of a magnesium methoxide suspension in DMF with C02. More elegantly, sodium salt of nitroalkanes can he carboxylated by means of 1 -ethoxycarbonylbenzotriazole to give a-nitro esters in 55-80% yield (Eq. 5.7).15 Nitroacetic acids and its esters can serve as useful... 

Alkylation of 2,4-disubstituted-5(477)-oxazolones can be conveniently performed via phase-transfer catalysis. For example, the substrate and an alkyl halide are dissolved in an organic solvent and stirred with an aqueous sodium carbonate solution containing tetrabutylammonium bromide as a phase-transfer catalyst. 4,4-(Diarylmethyl)-2-phenyl-5(4/f)-oxazolones can be prepared in one-step by dialkylation of 146 using magnesium methyl carbonate and the corresponding... 

Stile has developed an alternative way to generate magnesium enolate under mild basic conditions . Ketones react with magnesium methyl carbonate (MMC or Stile s reagent)... 

MACROCYCLIC POLY AMINES, 58, 86, 90 MACROLIDES, 58, 98 Magnesium, bromo phenyl, 58, 138 Magnesium methyl carbonate, 56, 121 Maleic acid, methyl ester, 56, 63 Manganese, tricarbonyl[(l,2,3,4,5-7))-l-carboxy-2,4-cyclopentadien 1 yl], ... 

Ketones of the form RCOCH3 and RCOCH2R can be carboxylated indirectly by treatment with magnesium methyl carbonate 52.613 Because formation of the chelate 53 provides the driving force of the reaction, carboxylation cannot be achieved at a disubstituted a position. The reaction has also been performed on CH3N02 and compounds of the form RCH2N02614 and on certain lactones.61s Direct carboxylation has been reported in a number of instances. Ketones have been carboxylated in the a position to give (3-keto acids.616 The base here was lithium 4-methyl-2,6-di-f-butylphenoxide. 

Magnesium methyl carbonate, 310 Malic acid, 135 Malyngolide, 224, 316 Manganese(II) chloride-lithium aluminum hydride, 310 Manganese dioxide, 311 Manicone, 121... 

The most successful nonaqueous deacidification treatment is the Wei T o process which uses solutions of methoxy magnesium methyl carbonate in alcohol and Freon as the starting materials (33). The spray deacidification of the solution on books is now in use at the... 

The methoxy magnesium methyl carbonate (H COMgOCOOCH,) after being deposited in the fibers by the solvents, reacts witn water from the air to form a mixture of magnesium carbonate (MgCO ), magnesium hydroxide [Mg(OH )], and magnesium oxide (MgO) ... 

Wei T o Process. Wei T o process is the only mass deacidification process currently available commercially. The "liquid gas" deacidification solution of this process consists of methoxy magnesium methyl carbonate dissolved in a mixture of Freon and methyl alcohol. The process has been proven by six years of production operation at the National Library and Public Archives of Canada. It utilizes a less complex system than the DEZ process to achieve deacidification. National Library and Public Archives of Canada are satisfied with the deacidification results. 

Wei To 2 (deacidifier) Wei To Corp. Methoxy magnesium methyl carbonate... 

Cate, L. A. An efficient carboxylation of 1-naphthols using magnesium methyl carbonate. Synthesis 1983, 385-386. 

Sodium phenolate, CjHsONa. Magnesium methyl carbonate (which see) has been shown to be an effective agent for carboxylating active methylene groups. Italian investigators have found that sodium (or potassium) phenolate in combination with carbon dioxide carboxylates cyclohexanone in dimethylformamide to give... 

Magnesium methoxide, Mg(OCH3).2 [1, 631, before Magnesium methyl carbonate]. Mol. wt. 86.39. Supplier Stauffer Chemical Co., Anderson Chemical Division, 3940 Summit St., Weston, Mich. 49289. 

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