5-naphthyl-3-phenyl- -chloride

A new Y solvolysis scale has been developed for benzylic species with extensive charge delocalization, based upon the solvolyses of some benzhydryl bromides and /-butyl(2-naphthyl)methyl bromides.39 Chlorides have negative salt effects on the ionization of benzhydryl bromide in 7-butyrolactone.40 The X-ray structure of the dimerization product of l,8-bis(dhnethylammonio)-4-naphthyl(phenyl)methyl carbocation has been determined it appears to be formed via a 4n + 2n-cycloaddition mechanism 41... 

Aryl mercury halides can also be used for the arylation of aryl tellurium halides, as exemplified by the synthesis of 2-naphthyl phenyl tellurium using phenyl mercury(II) chloride in dioxane1. 

Naphthyl phenyl sulfide is desulfurized to naphthalene on refluxing with lithium aluminum hydride and titanium tetrachloride, and 1-naphthyl ethyl sulfide and 1-naphthyl isopropyl sulfide are converted to naphthalene on treatment with ethanethiol and anhydrous aluminum chloride (equation 83). ... 

Although thienyl compounds of the type RHgX react with potassium iodide in acetone to give the type R Hg, this has only been noted in benzenoid derivatives in the case of p-tolylmercuric chloride, when a large excess of potassium iodide is used. With phenyl and a-naphthyl-mercuric chlorides only the corresponding iodides are produced. The... 

Benz[de]anthrone 272 A finely divided mixture of 1-naphthyl phenyl ketone (1 part) and anhydrous aluminum chloride (5 parts) is heated, with protection by a calcium chloride tube, during 0.5 h from 60° to 115°, during a further 1 h from 115° to 130°, and during a final 1 h from 130° to 150°. The cake is decomposed by dilute hydrochloric acid, and the resulting solid is filtered off and washed with alcohol and ether it then consists of moderately pure benzanthrone (yield 76%). Recrystallization from glacial acetic acid, with charcoal, affords the pure compound as pale brown needles, m.p. 167-168° (uncorr.). 

Using bulkier-substituted phenyls such as 2,6-dimesitylphenyl (Dmp) and 2,6-di(l-naphthyl)phenyl (Dnp), 1 1 species witii similar formulae are obtained, [Y(Dmp)Cl2(THF)3], [Ln(Dmp)Cl2(THF)2] (Ln = Sc, Yb), and [Ln(Dnp)Cl2(THF)2] (Ln = Y, Tm, Yb). These adopt five- and six-coordinate structures. In these cases, however, it appears that fiuther substitution of chloride is not possible because of the bulk of the substituents in the 2,6-positions of the benzene ring. ... 

The chiral silyllithium reagent methyl(naphthyl)(phenyl)silyl-lithium is configurationally stable at and below room temperature, and reacts with methyl(naphthyl)(phenyl)silyl chloride with retention at the nucleophilic silyl group and inversion at the electrophilic silyl group... 

Benzanthrone has been prepared by three general methods, the first of which is generally regarded as the best (i) by heating a reduction product of anthraquinone with sulfuric acid and glycerol,1 or with a derivative of glycerol, or with acrolein. The anthraquinone is usually reduced in sulfuric acid solution, just prior to the reaction, by means of aniline sulfate, iron, , or copper. It has also been prepared (2) by the action of aluminum or ferric chloride on phenyl-a-naphthyl ketone, and (3) from i-phenylnaphthalene-2-carboxylic acid. ... 

However, the homochiral 2- -(/ )-(-)-a-[(2-naphthyl)ethylamino]-4-phenyl-l-thiabuta-l,3-diene reacts with dienophiles when activated by acetyl chloride to give the exo product, exemplified by the cyclopenta[fc]thiopyran derivative (24) <96TL123>. 

AEOs have been analysed by HPLC and UV or fluorescence detection after suitable derivatisation. The derivatising agents proposed so far are phenyl isocyanate [80,81], 1-anthroylnitrile [82], 3,5-dinitro-benzoyl chloride [83], naphthyl isocyanate [84] and naphthoyl chloride [84], However, the lack of fluorescence activity and the need for synthesis through a multistep reaction for some derivatising agents limits their application in a real-world analysis. In fact, only a few of them were applied in the determination of AEOs in environmental samples. Zanette et al. [84] developed derivatisation and separation... 

Ethyl, methyl > m-tolyl, phenyl >/>-tolyl, p-ethoxyphenyl, p-methoxy-phenyl, o-tolyl, o-ethoxyphenyl, o-methoxyphenyl > cyclohexyl, mesityl, 1-naphthyl. The reaction is catalyzed by metal salts such as aluminum chloride. 

Apart from copper(I)-mediated reactions, few studies of the treatment of vinyliodonium salts with carbanions have appeared. The vinylations of the 2-phenyl- and 2- -hexyl-l,3-indandionate ions shown in equations 222 and 223 are the only reported examples of vinyliodonium-enolate reactions known to this author26,126. ( ,)-l-Dichloroiodo-2-chloroethene has been employed with aryl- and heteroarvllithium reagents for the synthesis of symmetrical diaryliodonium salts (equation 224)149,150. These transformations are thought to occur via the sequential displacement of both chloride ions with ArLi to give diaryl (/ -chlorovinyl)iodanes which then decompose with loss of acetylene (equation 225). That aryl(/ -chlorovinyl)iodonium chlorides are viable intermediates in such reactions has been shown by the conversion of ( )-(/ chlorovinyl)phenyliodonium chloride to diaryliodonium salts with 2-naphthyl- and 2-thienyllithium (equation 226)149,150. 

The reaction between aryl (phenyl, substituted phenyl, naphthyl) tellurium trichlorides and aryl mercury chlorides or acetates are best carried out with dioxane as the solvent. The mercury(II) salts precipitate as their dioxane adducts. The symmetrical or unsymmetrical... 

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