Cyclic propylene ester

Carbonic acid, cyclic propylene ester cyclic methylethylene carbonate cyclic propylene carbonate 4-methyl-2-oxo-l,3-dioxolane 1,2-propanediol cyclic carbonate 1,2-propylene carbonate. 

DIETHOXYPHOSPHINYL)DITHIOIMIDOCARBONIC ACID CYCLIC PROPYLENE ESTER... 

AC 47470 AI3-25991 American Cyanamid CL-47470 CL-47,470 Cyclic propylene (diethoxyphosphinyl)-dithioimidocarbonate Cyclic propylene P,P-diethyl phosphonodithioimidocarbonate Cytrolane (Diethoxy-phosphinyl)dithioimidocarbonic acid cyclic propylene ester 2-(Diethoxyphosphinylimino)-4-methyl-1,3-dithio-lane 0,0-Diethyl(4-methyl-1, idithiolan-2-ylidene)phos-phoramidate 1,3-Dithiolane, 2-(diethoxyphosphinyl-imino)-4-methyl- EI47470 ENT-25,991 HSDB 6411 Imidocarbonic acid, phosphonodithio-, cyclic propylene P,P-diethyl ester Mephosfolan Mephospholan Phosphonodithioimidocarbonic acid cyclic propylene P,P-diethy ester Phosphoramidic acid, (4-methyl-1,3-dithiolan-2-ylidene)-,... 

Carbonic acid, cyclic propylene ester. See Propylene carbonate Carbonic acid gas. Carbon dioxide Carbonic acid monosodium salt See Sodium bicarbonate Carbonic acid, potassium zirconium salt See Zirconium potassium carbonate... 

CAS 108-32-7 EINECS/ELINCS 203-572-1 Synonyms Carbonic acid, cyclic propylene ester Carbonic acid, 1,2-propylene glycol ester 1,3-Carbon dioxypropane Cyclic methyleth-ylene carbonate Cyclic propylene carbonate Cyclic 1,2-propylene carbonate 1,3-Dioxolan-2-one, 4-methyl Dipropj ene carbonate 4-Methyl-1,3-dioxolan-2-one 1-Methyl ethylene carbonate 1,2-Propanediol carbonate 1,2-Propanediyl carbonate 1,2-Propylene carbonate Propylene glycol cyclic carbonate Classification Qrganic compd. carbonic acid ester Empirical C,HsQ,... 

Propylene carbonate CAS 108-32-7 EINECS/ELINCS 203-572-1 Synonyms Carbonic acid, cyclic propylene ester Carbonic acid, 1,2-propylene glycol ester 1,3-Carbonyl dioxypropane Cyclic methylethylene carbonate Cyclic propylene carbonate... 

Carbonic acid, cyclic propylene ester. See Propylene carbonate... 

Carbonic acid cyclic propylene ester. Methylethylene... 

Carbon dioxide. The patent literature contains a number of disclosures describing addition of carbon dioxide to ethylene or propylene oxide for the preparation of cyclic carbonate esters,81 -, 030 uu, um... 

CBW400 CAS 2463-45-8 HR 3 CARBONIC ACID, CYCLIC 3-CHLORO-PROPYLENE ESTER... 

SYNS AC 47470 AMERICAN CYANAMID CL-47470 CL-47,470 CYCLIC PROPYLENE piETHOXYPHOS-PHINYL)DITHIOIMIDOCARBONATE CYTROLANE p,p-DIETHYL CYCUC PROPYLENE ESTER of PHOSPHONODITHIOIMIDOCARBONIC ACID DIETHYL (4-METHYL-l, 3-DITHIOLAN-2-YLIDENE)-PHOSPHOROAMIDATE EI-47470 DENT25,991 MEPHOSFOLAN (4-METHYL-l,3-DITHIOLAN-2-YLIDENE)PHOSPHORAMIDIC ACID, DIETHYL ESTER... 

CYCLIC N, 0-PROPYLENE ESTER of N,N-BIS(2-CHLOROETHYL)PHOSPHORODIAMIDIC ACID MONOHYDRATE see CQC500 CYCLIC PROPYLENE... 

PHOSPHORAMIDIC ACID, (4-METHYL-1,3-OITHIOLAN.2-YLIDENE)-, DIETHYL ESTER PHOSPHONODITHIO-, CYCLIC PROPYLENE P.P-DIETHYL ESTER IMIDOCARBONIC ACID... 

Reactions of cyclic nitronic esters are also described. 3-Nitro-isoxazoline-jV-oxide (32a) is itself a cyclic nitrone, and forms isoxazo lizidines (33a) when allowed to react with olefins (5) such as ethylene,112,129,130 vinyl acetate,129 propylene,129 and styrene.130 With tetramethylethylene, cyclopentene, and cyclohexene, the corresponding isoxazolizidines are also obtained.131... 

In 1978, a patent was published by the AGROFERM AG claiming that cyclic carbonic esters such as ethylene carbonate and 1,2-propylene carbonate are particularly suitable solvents for PHB, especially for the extraction of PHA from moist microbial biomass. Here, PHA-rich biomass is suspended in the cyclic ester and heated under stirring. After removal of the hot extract, PHA is precipitated from the liquid by simple cooling down or addition of small amounts of water. As a drawback it turned out that the extraction with both cyclic esters, but especially with ethylene carbonate, results in a high degree of depolymerization, hence in inferior molecular masses. This effect is very dependent on temperature and time of the extraction [80]. 

The electrolyte for LIBs is a mixture of organic solvents and an electrolyte salt compoimd. The common solvents are a mixture of cyclic carbonate esters, such as ethylene carbonate and propylene carbonate, and linear carbonate esters, such as dimethyl carbonate and diethyl carbonate. The solution is completed with the addition of a salt compound such as LiPFe or LiBp4. Electrolyte solutions must enable the Li ions to transport freely, which requires both high dielectric constant and low viscosity. Cyclic carbonate esters have a high dielectric constant but high viscosity, while linear carbonate esters have low viscosity but low dielectric constant. Suitable electrolyte solutions are therefore obtained by mixing the two. 

The mechanism of this reaction has been studied by several groups [133,174-177]. The consensus is that interaction of ester with the phenolic resole leads to a quinone methide at relatively low temperature. The quinone methide then reacts rapidly leading to cure. Scheme 11 shows the mechanism that we believe is operative. This mechanism is also supported by the work of Lemon, Murray, and Conner. It is challenged by Pizzi et al. Murray has made the most complete study available in the literature [133]. Ester accelerators include cyclic esters (such as y-butyrolactone and propylene carbonate), aliphatic esters (especially methyl formate and triacetin), aromatic esters (phthalates) and phenolic-resin esters [178]. Carbamates give analogous results but may raise toxicity concerns not usually seen with esters. 

Chiral [160, l70, l80]phosphomonoesters and ATPy[l60, l70, lsO] have been synthesized by Knowles and associates, who devised the procedure outlined in Fig. 19 [51-55], The procedure has been used to synthesize phenyl[160, l70, l80]phos-phate and 2-[160,170,180]phospho-D-glycerate as well as the propylene glycol ester shown. The starting cyclic adduct was prepared by reaction of (— )-ephedrine with P17OCl3, giving a separable mixture of 2-chloro-l,3,2-oxazaphospholidin-2-ones whose chemistry had been described [56], The major isomer was converted to (/ p)-l-[160, nO,180]phospho-1,2-propanediol and (Sp)-ATPy[l60, nO, lsO] by the reactions shown. The stereochemistry at each step of the synthesis was well prece-dented in the literature nevertheless, the configurations were verified by independent methods described in the next section. 

Cyclic p-kcio esters and )9-diketones (596) smoothly effect ring-opening of 1,1-bis(benzenesulphonyl)cyclopropane (412) under basic conditions. Reductive cleavage of the resulting sulphones (597) by lithium arylides provides routes to 598 and 599 (equation 210) The bis-benzenesulphonyl compound appears to fulfil the requirements for a propylene 1,3-dipole. The fact that the sulphones can be sequentially removed permits selective introduction of from one to three electrophiles (E) (equation 211). In the case of )5-keto esters, such versatility created a novel three carbon insertion between the ester group and the ketone or a cyclopentane annulation. ... 

A determination of water in a dry solution is thus often of interest. A gas chromatographic method has been employed [264] for determination of water in certain cyclic esters, but injection of electrolyte solutions causes accumulation of salts in the injection chamber and sometimes erratic results due to thermal decomposition of electrolytes. Analytical use of the 1.9-/L6m water band in the near-infrared [265] may be practical for certain solvents, such as propylene carbonate, but not for many of the commonly used solvents. A method has been described [266] in which the water reacts with lead tetra-... 

Diethanolamine will react with acids, acid anhydrides, acid chlorides, and esters to form amide derivatives, and with propylene carbonate or other cyclic carbonates to give the corresponding carbonates. As a secondary amine, diethanolamine reacts with aldehydes and ketones to yield aldimines and ketimines. Diethanolamine also reacts with copper to form complex salts. Discoloration and precipitation will take place in the presence of salts of heavy metals. 

Usieli V, Pilersdorf A, Shot S, et al. Chiroptical properties of cyclic esters and petals derived from (S)-l, 2-propylene glycol and (5,5)-and (R,R)-2,3-butylene glycol. ] Org Chem 1974 39 2073-2079. 

Under the conditions of stoichiometric (eq. (4)) or catalytic (Scheme 2) reactions, propylene is oxidized to isopropenyl acetate as the main reaction product, along with allyl and cis- and trans -n-propenyl acetates. Higher acyclic alkenes C4-C10 are converted to mixtures of allyl and vinyl esters [5]. Cyclic alkenes also produce homoallylic esters [6, 7]. 

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