F Ethyl bromide

Ethyl 2-(2-amino-4-thiazole)-2-methoxyiminoacetate, 2995b iV-Ethylaniline, 2989 Ethyl azide, 0868 Ethyl 2-azido-2-propenoate, 1884 f Ethylbenzene, 2963 f Ethyl bromide, see Bromoethane, 0842... 

Ethyl bromide is a colourless liquid, of b.p. 38° and [Pg.102]

CH2Br -f CH3CH2Br Benzyl bromide Ethyl bromide... 

Saunders and co-workers (Amin et al., 1990) used E2 elimination reactions in the p-substituted 2-phenylethyl system to test the new criteria for tunnelling suggested by the above calculations. The actual substrates and base/solvent systems they used were (2-phenylethyl-2-f)-trimethylammonium bromide, [19], with sodium ethoxide in ethanol, 2-phenylethyl-2-f bromide, [20], with potassium t-butoxide in t-butyl alcohol and 2-(p-chlorophenyl)ethyl-2-f tosylate, [21], with potassium t-butoxide in t-butyl alcohol. When equation (57) was applied to the experimental secondary (kB/ S) KIEs in Table 39, the calculated /th h KIEs were 1.106 0.033 and 1.092 0.026 for [19] and [21],... 

Use a very strong base as the nucleophile. When we use a relatively weak base, such as ethyl alcohol, only about 20% of f-butyl bromide undergoes elimination. 

Ethynyl-p-ionol Dimethyl sulfoxide Ethyl bromide Copper chloride Alumina (Alcoa F-20)... 

Zink (1-Ethoxycarbonyl-l-me-thyl-ethyl)- -bromid XIII/2a, 643 f. 

J The values found for the electric moments of ethyl bromide and methyl iodide by P. C. Mahanti, Indian Journal of Physics 3, 181 (1928), using the same method, are likewise low in comparison with other results (see e.g. Smyth and Morgan, Amer. Ghent, Soc.y 50, 1547 (1928) for ethyl bromide, and Williams, Zeitschr,f, phy, Chemiey A, 138, 75 (1928) for methyl iodide). 

Reaction conditions A MeOH (1 equiv.) B CuCN (1 equiv.) C ethyl 2-(bromomethyl)acrylate D nitrostyrene E MeaSnCI (1 equiv.) F allyl bromide G i-BuOH (1 equiv) (E)-1-iodo-l-butene, Pd(PPh3) cat I CITi(OiPr)3 (2 equiv.), benzaldehyde (1.5 equiv.). 

Trimethyl- i-pentene, t-butyl chloride, f-butyl bromide, n-nonane, isobutylene, methyl chloride, ethyl chloride, methyl bromide, methylene chloride and n-hexane were obtained in high purity and further purified by standard methods before use. 

Silver fluoborate, reaction with ethyl bromide in ether, 46, 114 Silver nitrate, complexing with phenyl-acetylene, 46, 40 Silver oxide, 46, 83 Silver thiocyanate, 46, 71 Sodium azide, reaction with f-butyl chloroacetate, 46, 47 reaction with diazonium salt from fi-amino-/> -nitrobiphenyl, 46,... 

Isoamylene oxide added dropwise with stirring at —10 to —12° to ethyl-MgBr, from Mg and ethyl bromide in ether, allowed to stand 48 hrs., and evaporated, whereby a violent reaction occurs towards the end — propylisopropylcarbinol. Y 63%. (F. e. with lower yields s. M.S. Malinovskii and B. N. Konevichev, >K 18, 1833 (1948) C. A. 43, 3776 d.)... 

ETHYL BROMIDE (74-96-4) Forms explosive mixture with air (flash point —4°F/ —20°C). Hydrolyzes in water, forming hydrogen bromide. Contact with oxidizers, diethyl-aluminum hydride, chemically active metals aluminum, magnesium or zinc powders, lithium, potassium, sodium, may cause fire or explosions. Incompatible with alcohols, diketene. Attacks some plastic, rubber, and coatings. 

Depending upon the structural environment, lithium compounds with the system LiC—C=N— show strong differences in reactivity towards alkyl halides. For example, a solution of LiCH2CH—N—f-Bu (or c-hexyl) in THF and hexane reacts very slowly with ethyl bromide and higher homologues at temperatures below — 10°C. Smooth conversions are observed with lithiated 2-methyl-, 3-methyl-, and 4-methylpyridine and lithiated 2-methyloxazines and 2-methylthiazoles, even at temperatures in the range of — 70 °C. 

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