Specific electron transporting molecules which is prepared in line with the actual invention are selected of your group including things like anthrone derivatives and antihypertensive drug intermediates on the following formulas: wherein A and B are independently selected from your group that includes CN and COOR, wherein R is undoubtedly an alkyl group as well as aryl group; X and Y are independently selected through the group that includes alkyl, aryl, halide, hydroxy and electron withdrawing groups for example CN, NO 2 , COR, COOR, and, wherein R can be defined herein, and m and n are levels of from 0 to three. With further relationship with the whole process of today's invention, the condensation reaction of the anthraquinone with active methylene compounds, including malononitrile, (dicyanomethane), malonate (bis[methoxycarbonyl]methane), dinitromethane, beta diketones, and so on, is affected in a suitable organic solvent at room temperature within the presence to a base plus a Lewis acid. Using the proper chosen reactants, their 11,11,12,12-tetrasubstituted anthraquinodimethane and 10-disubstituted methylene anthrone derivatives can be acquired by similar synthetic process. Specifically, the electron transporting anthrone difluorobenzophenone derivatives have decided by reacting 1 mole of any anthraquinone with 1-to-1.5 moles associated with the active methylene compound. These condensation is affected inside presence of each excess, generally 2 to 5 moles, of your Lewis acid which includes titanium tetrachloride also as an excess, generally 4 to twenty moles, from a base inclusive of pyridine. Suitable solvents for your reaction include chlorinated compounds like methylene chloride, chloroform, and 1,2-dichloroethane; and ethyl acetate. Also, this reaction is normally initially accomplished at ice-bath temperatures, and be able to at room temperature. Therefore, the preparation of anthrone derivatives, that is purified by recrystallization or by chromatography, and are generally observed as a elemental analysis, spectroscopy and mass spectrometry, is generally illustrated just about the next reaction scheme: wherein X, Y, Z, m and n are as defined hereinbefore. Similarly, the electron transporting anthraquinodimethane derivatives are synthesized by reacting 1 mole associated with an anthraquinone with A few moles of an active methylene compounds like malonoitrile, malonate, and so on. The aforementioned condensation is affected in a similar close to the preparation for the anthrone manufacturer derivatives although additional Lewis acid and base work. Generally, thus every mole of anthraquinone, 3 to 5 moles of titanium tetrachloride, and 6 to 25 moles of pyridine were chosen. Accordingly, the preparation of anthraquinodimethane derivatives, which can be purified by simple recrystallization in a suitable solvent or by chromatography, and are generally seen as an elemental analysis, standard spectroscopic and mass spectrometric techniques, are generally illustrated via the following reaction sequence: wherein X, Y, A, m and n are as defined herein. With further mention of the synthesis with the anthraquinodimethane derivatives with different substituents, that may be, wherein the A substituent, for example, is CN, plus the B substituents are COOR, for the carbon-11 and carbon-12 position, you will find there's reacted 10-disubstituted methylene anthrones , with 1 to 1.5 moles of active methylene compounds, relative to these particular reaction scheme (III). These condensation is affected within the presence associated with excess, generally Two to five moles of a Lewis acid similar to titanium tetrachloride, together with excess, generally 4 to twenty moles, of an base including pyridine. Suitable solvents for this reaction include chlorinated compounds like methylene chloride, chloroform, and 1,2-dichloroethane; and ethylacetate. Also, this reaction is invariably initially accomplished at ice bath temperatures, and next at room temperature. wherein the A substituents are COOR, the B substituents are CN, and also the other substituents are as defined herein. Regarding the reactions illustrated herein, the response temperature generally ranges from about 0?? to about 30?? C. Electrical testing was completed in accordance in the procedure of Example VIII. Specifically, this imaging member was positively charged to fields of 40 volts/micron and exposed to white light of wavelengths of 400 to 700 nanometers. The half decay exposure sensitivity with this device was 50 ergs/cm 2 , as well as electrical properties remained substantially the very same after 1,000 cycles of repeated charging and discharging. Other trichlorotoluene with the present invention may get lucky and those skilled in the art relying on a reading of the present disclosure plus the modifications are intended to be included inside of the scope from the present invention.

Posted by: littlelolita at 03:36 AM | Comments (1) | Add Comment
Post contains 727 words, total size 5 kb.