5-chloro-1,2-diphenyl

Structure 1 1 10-1-3 chloro(diphenyl)-X3-iodane 2 8-I-2 diphenyliodonium chloride... 

Whether the iodonium salts are truly iodonium salts, and not highly-polarized, unsymmetrical i3-iodanes, has recently been questioned by Ochiai on the basis of X-ray evidence (03MI1). For example, diphenyl-iodonium chloride, or chloro(diphenyl)- 3-iodane [Ph2I + Cl or... 

Because nitrobenzene absorbs strongly at the wavelength of the carbenium ion maximum from chlorotriphenylmethane, this result was obtained with chloro-diphenyl-4-tolylmethane. 

Tellur an(IV) Chloro-diphenyl-iodo-E12b, 586 (Chloroiodierung)... 

Chloro-diphenyl-phosphor-anylidene)- , 2-diphenyl-elh-ylidene]-3,4-diphenyl-2-oxo-2,5-dihydro- 3037... 

Chiral aminophosphane-phosphinites (AMPP), prepared by the reaction of chloro(diphenyl)-phosphane with optically active amino alcohols, such as ephedrines, prolinol and A -methyl-phenylglycinol, are used as ligands in transition metal catalyzed cyclodimerization of butadiene to 4-vinylcyclohexene62,10 . With a nickel(0)LJ catalyst (L = Proliphos), (—)-4-vinylcyclo-hexene with 15% ee was obtained in 50% yield6. ... 

Cyanoethyl)diplienylphosp]iine 14 Diphenylphosphine [3.3 g from chloro(diphenyl)-phosphine14] and acrylonitrile (1.9 g) are placed under nitrogen in a tube cooled in Dry Ice. The tube is then sealed and heated for 7 h at 130°. Removing the unchanged nitrile by distillation leaves a residue that crystallizes two recrystallizations from methanol gives the product, m.p. 64-64.5°, in 71 % yield (3 g). 

Ferrocene reacts with PC13/A1C13 with replacement of all three chlorine atoms, but the tertiary phosphine is sensitive to air and difficult to isolate. However, diferrocenylphenylpfiosphine [from dichloro(phenyl)phosphine] and ferrocenyldiphenylphosphine [from chloro(diphenyl)phosphine] are obtained analogously as stable compounds in 52% and 37% yield, respectively.156... 

Naphthyldiphenylphosphine 360 Potassium (7.8 g) is dispersed in dry 1,2-diethoxyethane (250 ml) by means of a vibrator and treated dropwise under nitrogen with (chloro)diphenyl-phosphine (21.5 g). After 1 hours warming at 65° the resulting deep red solution is treated with completely dried sodium 1-naphthalenesulfonate (23 g) and heated at 180° for 3 h, whereupon the color fades. The mixture is allowed to cool and hydrolysed carefully with water (100 ml). The ethereal layer is dried and evaporated and the residue is heated on a water-bath with methanol. This leaves the tertiary phosphine undissolved (23.8 g, 75%), m.p. 124°. 

Diphenyliodonium chloride or chloro(diphenyl)->. -iodane [/V-(4-Methylphenylsulfonyl) i m i no] pheny I- iodane Iodine pentafluoride or pentafluoro-X -iodane Iodic acid lodylbenzene 1 -Hydroxy-1 -oxo-1 H-IX -benzo [t/j [ 1,2 ] iodoxo I -3 -one... 

Tou, J.G. Boggs, G.U., Determination of sub parts-per-miUion levels of sec-butyl chloro-diphenyl oxides in biological tissues by plasma chromatography, Anal. Chem. 1976,48, 1351-1357. 

In a nitrogen-flushed reaction vessel was added a solution of 100 /xL chloro diphenyl phosphinite (0.56 mmol) in 5 mL dry THF, followed by 100 /xL triethyl amine (0.8 mmol) and 81 /xL 2-methoxybenzyl alcohol (0.6 mmol) successively. After overnight stirring at room temperature, triethyl ammonium salts were Altered off under nitrogen (glove box), and... 

Acifluorfen-methyl and LS 820340, fi-nitro and fi-chloro diphenyl ethers, respectively, had Uq s of less than 1 /iM for the synthesis of Mg-PPIX from ALA in a maize etioplast preparation (57). 

Two trityl-based supports are presently in common use for the production of peptide adds by Fmoc SPPS 2-chlorotrityl chloride resin 7 (12) and 4-(chloro(diphenyl)methyl)benzoyl resin 8 (13). 

These resins are extremely moisture sensitive, and so it is essential that all reagents and glassware should be dried thoroughly before use. 2-Chlorotrityl chloride resin can be stored desiccated at room temperature 4-(chloro-(diphenyl)methyl)benzoyl resins should be generated from the precursor trityl alcohol immediately before use as described in Protocol 5. The chemical characteristics of 7 and 8 are identical. 

Which one of the two chlorides will solvolyze more rapidly (l-chloroethyl)benzene, CgHsCHCl, or chloro(diphenyl)methane, (C6H5)2CHC1 Explain your answer. 

PyraZolines. l,3-Diphenyl-2-pyia2olines (7) (Table 2) aie obtainable from appiopiiately substituted phenyUiydiazines by the Knoii reaction with either P-chloro- or P-dimethylaminopropiophenones (30,31). They are employed for brightening synthetic fibers such as polyamides, cellulose acetates, and polyacrylonitriles. 

Researchers at Du Pont used hydroquinone asymmetrically substituted with chloro, methyl, or phenyl substituents and swivel or nonlinear bent substituted phenyl molecules such as 3,4- or 4,4 -disubstituted diphenyl ether, sulfide, or ketone monomers. Eor example,... 

Halogeno-l-methyl-l,2,3-triazoles undergo substitution reactions with amines, but the 4-halogeno analogs do not. 5-Chloro-l,4-diphenyl-l,2,3-triazole with sodium cyanide in DMSO gives the cyano derivative (63JCS2032). 1-Substituted 3-chloro- and 5-chloro-l,2,4-triazoles both react with amines. 

In theory, three isoxazolines are capable of existence 2-isoxazoline (2), 3-isoxazoline and 4-isoxazoline. The position of the double bond may also be designated by the use of the prefix A with an appropriate numerical superscript. Of these only the 2-isoxazolines have been investigated in any detail. The preparation of the first isoxazoline, 3,5-diphenyl-2-isoxazoline, from the reaction of )3-chloro-)3-phenylpropiophenone with hydroxylamine was reported in 1895 (1895CB957). Two major syntheses of 2-isoxazolines are the cycloaddition of nitrile A-oxides to alkenes and the reaction of a,/3-unsaturated ketones with hydroxylamine. Since 2-isoxazolines are readily oxidized to isoxazoles and possess some of the unique properties of isoxazoles, they also serve as key intermediates for the synthesis of other heterocycles and natural products. 

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