Propenyl chloroformate

Mokhallalati, M.K. Synthesis and uses of some 3-chloro-1-propenyl chloroformates and efficient new routes to some pyridine-2,3-dicarboxylic esters Ph. D. Thesis, The Pennsylvania State University, 1990... 

In another case, we have observed and studied the rearrangement of 1-chloroallyl chloroformate to E,Z-3-chloro-1-propenyl chloroformate (Ref. 110) [Scheme 85]. 

Related Reagents. 2-(ferf-Butylsulfonyl)-2-propenyl Chloroformate (Bspoc-Cl) l,l-Dioxobenzo[fi]thiophene-2-ylmethyl Chloroformate (Bsmoc-Cl) 9-Fluorenylmethyl Chloroformate (Fmoc-Cl) 2-(Methylsulfonyl)ethyl Chloroformate (Msc-Cl). ... 

Di(2-propenyl)-l,4-dioxane-2,5-dione (5.0 mmol), L-lactide (45.0 mmol), 20 ml of 0.01 M toluene solution of tin 2-ethylhexanoate, and 20 ml of 0.01 M toluene solution of /M-butylbenzyl alcohol were charged in a polymerization ampoule and then sealed and heated at 150°C for 1 hour. The polymer was then dissolved in chloroform, precipitated in excess methanol, filtered, and 6.55 g of product isolated containing 9 mol% 3,6-di(2-propenyl)-l,4-dioxane-2,5-dione and having an Af of 17,400Da with an Mw of 23,300 Da. 

Merritt et al. [124,170-174] carried out some of the earliest additions of fluorine to carbon-carbon double bonds. The fluorination of cis and trans propenyl benzene in a nonpolar solvent at low temperature gave predominantly erythro and threo difluorides respectively. More recently, Rozen [175] carried out similar reactions, but used a more polar solvent (trichlorofluoro methane, chloroform and ethanol) and a very low concentration of fluorine. Thus, in the fluorination of cis and trans 3-hexene- l-ol acetate (Fig. 72), syn addition occured to give exclusively the erythro and threo difluoro compounds respectively. Corresponding results were obtained in the addition of fluorine to other alkenes, including cyclic alkenes and cyclic enones. 

A mixture of 6-(2-propenyl)-8 5-carboxy-ergoline and N-(3-dimethylaminopropyl)-N-ethyl carbodiimide in tetrahydrofuran were refluxed, with stirring and under nitrogen, for 24 h. The resultant solution was evaporated in vacuo to dryness and the residue taken up with chloroform and... 

Treatment of o-aminoesters 338 with thiophosgene in chloroform afforded isothiocyanates 339, which were either refluxed with 2-methyl-allylamine in dichloromethane to afford 3-(2-methyl-2-propenyl)thieno-[3,4-d]pyrimidin-4-ones 340, or treated with ethanolamine to yield the 3-(2-hydroxyethyl) derivatives 341. Derivatives 340 were obtained directly from o-aminoesters 338 by heating with allylisothiocyanate in propan-1-ol (89CPB2122). 

Propenyl-2,4-oxazolidinediones (196) are obtained from 7V-propenyl-2-chloroacetamides and ester chloroformates in the presence of potassium carbonate (Equation (29)) <91H(32)1697>. Cyanohydrins react with chlorosulfonyl isocyanate to afford 5,5-disubstituted 2,4-oxazolidinediones (197) after acid hydrolysis (Equation (30)) <91S697>. 

CARBONOCHLORIDIC ACID, 2-PROPENYL ESTER (2937-50-0) Forms explosive mixture with air (flash point 88°F/31°C). Decomposes in water, forming chloroformic acid and allyl alcohol. Incompatible with acids, caustics, amines. Oxidizers, peroxides, elevated temperatures may cause explosive polymerization. Corrodes metals. 

Aminobenzoic acid-3-phenyl-2-propenyl ester. See Cinnamyl anthranilate p-Aminobenzoic acid potassium salt. See Potassium-p-aminobenzoate p-Aminobenzoic acid sodium salt. See Sodium aminobenzoate 2-Aminobenzothiazole CAS 136-95-8 EINECS/ELINCS 205-268-4 Synonyms 2-Aminobenzthiazole p-Aminobenzthiazole 2-Benzothiazolamine Benzothiazole, 2-amino-Empirical C7H6N2S Formula C6H4NC(NH2)S Properties Wh. or gray powd. odorless sol. in Chloroform, ether, DMSO, 95% ethanol, acetone, cone, acids sol. < 1 mg/ml in water m.w. 150.20 sp.gr. 0.5 m.p. 126-132 C b.p. dec. distills without decomp. 

CAS 94-59-7 EINECS/ELINCS 202-345-4 Synonyms 5-Allyl-1,3-benzodioxole Allylcatechol methylene ether Allyidioxybenzene methylene ether 1-Allyl-3,4-methylenedioxybenzene 4-Allyl-1,2-methylenedioxybenzene m-Allylpyrocatechin methylene ether Allylpyrocatechol methylene ether 1,2-Methylenedioxy-4-allylbenzene 3,4-Methylenedioxy allylbenzene 3,4-Methylenedioxy-1-allylbenzene 5-(2-Propenyl)-1,3-benzodioxole Safrole Empiricai C10H10O2 Formuia C3H5C6H3O2CH2 Properties Colorless vise. liq. orcryst. sassafras odor very sol. in alcohol misc. with chloroform, ether, chlorinated solvs. insol. in water m.w. 162.20 dens. 1.0960 (20 C) m.p. 11 C b.p. 234.5 C flash pt. 100 C ref. index 1.5360-1.5385 Toxicoiogy LD50 (oral, rat) 1950 mg/kg,... 

Poly(4-(hexadecyloxy)-benzolc acld-4-[(2-methyl-1-oxo-2-propenyl) oxy]phenyl ester) - 1,400 Chloroform [66]... 

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