- Organophotoreceptor with a charge transport material having two (9-fluorenylidene) malononitrile groups
-
The present invention provides an organophotoreceptor comprising an electrically conductive substrate and a photoconductive element on the electrically conductive substrate, the photoconductive element comprising:(a) a charge transport material having the formulaX―Z―X'???where X and X' are, each independently, a (9-fluorenylidene)malononitrile group, and Z is a linking group having the formula -(CH2)m-, branched or linear, where m is an integer between 1 and 30, inclusive, and one or more of the methylene groups may be replaced by O, S, C=O, Si=O, S(=O)2, P(=O)2, an aromatic group, a heterocyclic group, an aliphatic cyclic group, a Si(R1)(R2) group, a BR3 group, a NR4 group, a CHR5 group, or a CR6R7 group where R1, R2, R3, R4, R5, R6, and R7 are, each independently, H, halogen, hydroxyl, thiol, an alkoxy group, an alkyl group, an alkenyl group, an aromatic group, a heterocyclic group, or a part of a cyclic ring; and(b) a charge generating compound.Corresponding electrophotographic apparatuses and imaging methods are described.
- -
-
-
- Syntheses d'analogues soufres d'isocannabinoides et de tetrahydrocannabinols
-
A systematic synthesis of thio compounds of isocannabinoids and tetrahydrocannabinols is described.The thiophenols were prepared by the Newman-Kwart reaction.The reaction of > has been used for the synthesis of citrylidene thiophenol.The structure of citrylidene monothioolivetol was established by spectroscopic and chemical methods.The synthesis of (-) 1'thio Δ1,6 THC is also described; this compound has potential biologic properties.
- Montero, Jean-Louis,Bello-Roufai, Nassirou,Leydet, Alain,Dewynter, Georges,N'Guessan, Thomas Yao,Winternitz, Francois
-
p. 302 - 308
(2007/10/02)
-
- Fragmentation of Aryl Alkyl Sulfides. A Simple, One-Pot Synthesis of Polymercaptobenzenes from Polychlorobenzenes
-
A simple procedure is described which allows one to prepare polymercaptobenzenes starting from chlorobenzenes.The reactions of all the possible chlorobenzenes with Me2CHSNa in HMPA give the corresponding (isopropylthio)benzenes which can be cleaved by adding sodium to the reaction mixtures to give the arenethiolates in good yields.In some cases the polymercaptobenzenes were isolated after treatment with acid; in other cases methyl iodide was added to the reaction mixture and poly(methylthio)benzenes were obtained.It is suggested that the (isopropylthio)benzenes react with sodium to give the corresponding radical anions which fragment at the sulfur-alkyl bond to give the arenethiolates.
- Maiolo, Filippo,Testaferri, Lorenzo,Tiecco, Marcello,Tingoli, Marco
-
p. 3070 - 3073
(2007/10/02)
-
- Pesticidal compositions containing phosphoric esters and divalent sulphur compounds
-
Pesticidal composition comprising: a pesticidal, phosphoric ester the molecule of which has at least one alkyl group of 1 to 3 carbon atoms, 0.05 to 10% of an agent stabilizing the said ester against decomposition by protonisation, together with adjuvants characterized in that the stabilizing agent comprises at least one sulphur compound containing per molecule at least one divalent sulphur atom of which one valence is bonded to an atom chosen from sulphur, carbon, nitrogen, hydrogen, and metals capable of giving a salt, the other valence being bonded to an atom chosen from hydrogen, the carbon atom already noted, a second carbon atom, the nitrogen atom already noted, a second nitrogen atom, the metal atom already noted in the case of a metal of valence greater than one, a second atom of metal and oxygen when the first valence is not attached to an atom of hydrogen, the proportion of sulphur calculated with reference to the weight of the sulphur compound being between 5 and 99%. Process for stabilizing a phosphoric ester of which the molecule possesses at least one alkyl group containing 1 to 3 carbon atoms characterized in that there is added to the phosphoric ester or to a mixture which contains it, 0.05 to 10% calculated on the weight of the phosphoric acid ester of an agent capable of stabilizing the said phosphoric ester against protonisation and comprising at least one sulphur compound such as that defined thereupon.
- -
-
-
