Chlonns

D respectively) but opposite in direction In one compound chlonne is the positive end of the dipole in the other it is the negative end Specify the direction of the dipole moment in each com pound and explain your reasoning... [Pg.53]

Structural drawings (molecular models too) can be deceiving For example the chlonne atoms in 1 2 dichlorocyclohexane seem much closer to each other in a drawing of the trans stereoisomer than in the cis Make a molecular model of each and measure the distance between the chlorines What do you find" ... [Pg.141]

Photochemical chlorination of pentane gave a mixture of three isomenc monochlorides The pnncipal monochlonde constituted 46% of the total and the remaining 54% was approximately a 1 1 mixture of the other two isomers Write structural formulas for the three monochlonde iso mers and specify which one was formed in greatest amount (Recall that a secondary hydrogen is abstracted three times faster by a chlonne atom than a pnmary hydrogen)... [Pg.186]

Acyl cations form by coordination of an acyl chloride with aluminum chloride followed by cleavage of the carbon-chlonne bond... [Pg.484]

Chloroacetate anion is stabilized by electron withdrawing effect of chlonne... [Pg.802]

Chlorohydnn (Section 6 17) A halohydnn in which the halo gen IS chlonne (see halohydnn)... [Pg.1279]

Chloronium lon (Section 6 16) A halonium ion in which the halogen is chlonne (see halonium ion)... [Pg.1279]

Diastereotopic (Section 7 13) Descnbing two atoms or groups in a molecule that are attached to the same atom but are in stereochemically different environments that are not mirror images of each other The two protons shown in bold in H2C=CHC1 for example are diastereotopic One is cis to chlonne the other is trans... [Pg.1281]

S W A R T S Halogen exchange Substitution of chlonne atoms with Huorine atoms by means of SbFs... [Pg.377]

The cleaning and gas freeing of tanks containing flammable residues Chlonne vaporizers... [Pg.572]

HS(Gj28 Safety advice for bulk chlonne installations... [Pg.575]

Reactions of Electropositive Chlonne Compounds with Fluorocarbons Schack, C. J, Chnste, K O. 1st. j Chem 17, 20-30 99... [Pg.15]

With successive equivalents of chlonne monofluonde 1,1 1,2 tetrachloroethane gives 1 -fluoro-1,1,2-tnchloroethane, 1,2 dichloro-1,1 -difluoroethane, 2-chloro 1,1,1-trifluoroethane with some 1-chloro-1 1,2 tnfluoroethane, and finally 1,1,1,2 tetra-fluoroethane (equation 13)... [Pg.176]

Once again, the addition of antimony pentachloride increases the reactivity of chlonne tnonofluoride toward alkanes but reduces its selectivity and thus allows more than one product to be generated [7d]... [Pg.177]

Anhydrous hydrogen fluonde, potassium fluonde, and sodium fluonde have all been used to promote the chlorine-fluonne exchangein tetmchloropyrukizine All three fliionne sources replace the chlonne in position 3 first Both sodium and potassium... [Pg.184]

The carbon-fluonne bond is normally resistant to cleavage by zinc metal so that the carbon-chlonne bond in chlorodifluoromethyl ketones is selecnvely reduced The... [Pg.297]

Replacement of an unactivated lone chlonne with hydrogen is also accom-phshed in good yield with lithium aluminum hydride. Chlorofluoronorcaranes are selectively dechlormated to give hydro derivatives, largely with retention of configuration The related monodeutcronorcaranes are prepared with lithium aluminum deutende [27] (equations 20a and 20b). [Pg.301]

Mixtures of 1 -phenyl-3,3,3-tnfluoropropene which are 97-98% E and 2-3% Z react quickly with elemental chlonne without irradiation or heating The reaction IS nonstereospecific and produces mixtures of diastereomers m ratios between 1 1 5 and 1 3 i [9] (equation 3)... [Pg.366]

Chlonne-36-labeled 1,1-dichlorotetrafluoroethane is produced photochemically from chlonne-36 and l-chloro-l,2,2,2-tetrafluoroethane in better than 90% yield [22]... [Pg.370]

Copyrolysis of 1,1-diehloroperfluoroindane and chlorodifluoromethane or tetrafluoroethylene gives 1-perfluoromethyleneindane as the major product and three minor products [3] (equation 2) Insertion of difluorocatbene into the benzylic carbon-chlorine bond and subsequent loss of a chlonne molecule is observed in the copyrolysis of chlorodifluoromethane and pentafluorobenzotnchlonde to give a-chloroperfluorostyrene as the major product. Aromatic carbon-chlorine bonds are unreactive to the difluorocarbene in this reaction [4] (equation 3). [Pg.497]

With a difluoroethylene containing hydrogen and chlonne, where both groups can be replaced by lithium, a mixture of two organolithium compounds is formed in a 2 1 ratio, indicating a more facile replacement of chlorine [63] (equation 30)... [Pg.661]

Generally, the addition of chlonne or bromine to tnfluoroacetonitrile leads to a mixture of partially halogenated imines, amines and azo alkanes [270, 271] In special cases, such as the HgF2-mediated addition of bromine, N,N dihaloper-fluoro-2-alkylamines can be obtained in good yields [272]... [Pg.876]

Ruorocarbon solvent polarity (PJ increases when fluonne is substituted by chlonne or hydrogen, and hydrofluorocarbons can be more polar than their hydrocarbon analogues Notably, = 7 52 and P (1,2 C H4p2) = 7 86 vs... [Pg.985]

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