摘要:
The present invention relates to novel triazole compounds of the following formula: wherein R1 to R5 have the meanings provided herein. The invention further relates to combinatorial libraries containing two or more such compounds, as well as methods of preparing triazole compounds.
摘要:
A novel class of polymers comprises one or more dipyridinium units, having the formula ##STR1## contained within the main polymer backbone where Ar.sup.1, Ar.sup.2, and Ar.sup.3 are aromatic or heteroaromatic nuclei each of which can consist of one ring or two fused or catenated rings having 5 to 12 ring carbon and heteroatoms which can include 1 to 3 unitary heteroatoms selected from S, N and O, R.sup.1 is any divalent organic bridging group, and Z.sup..crclbar. is a counterion.
摘要:
A poly(triazolinethione) is prepared by a process comprising the steps:(a) providing a poly(acylthiosemicarbazide),(b) cyclodehydrating the poly(acylthiosemicarbazide) by subjecting it to an elevated temperature in the presence of an aqueous alkaline solution to form a polyanion of a poly(triazolinethione),(c) treating the polyanion of the poly(triazolinethione) with aqueous acid solution to provide the poly(triazolinethione), and(d) isolating the resulting poly(triazolinethione).
摘要:
A novel class of heterocyclic polymers and copolymers containing the 2-imidazolin-5-one ring structure is described. These polymers are prepared by reaction of bisazlactones and diamines, with or without suitable condensation monomers; the resultant polyamides are then thermally cyclodehydrated in the presence of a catalyst to produce the imidazolinone-containing polymers. Many of the poly(imidazolinones) are water soluble and therefore find utility in various aspects of water treatment, or in paper or fabric sizing.
摘要:
A poly(triazolinethione) is prepared by a process comprising the steps:(a) providing a poly(acylthiosemicarbazide),(b) cyclodehydrating the poly(acylthiosemicarbazide) by subjecting it to an elevated temperature in the presence of an aqueous alkaline solution to form a polyanion of a poly(triazolinethione),(c) treating the polyanion of the poly(triazolinethione) with aqueous acid solution to provide the poly(triazolinethione), and(d) isolating the resulting poly(triazolinethione).
摘要:
An acid gas absorbent comprising a metal sulfonate, phosphonate or carboxylate of a hindered amine and a process for the selective removal Of H2S as well as other acidic components such as carbon disulfide, carbonyl sulfide and oxygen and sulfur derivatives of C1 to C4 hydrocarbons from mixtures containing such acidic components and CO2 using said absorbent.
摘要:
This invention relates to a novel organophotoreceptor that includes: (a) a charge transport material comprising a fluorenone hydrazone having a) least two fluorenone alkylsulfonylphenylhydrazone groups, b) at least two fluorenone pyrrolylhydrazone groups, c) at least two fluorenone benzotriazolylhydrazone groups, d) at least two fluorenone sulfolanylhydrazone groups, e) at least two fluorenone pyrazolylhydrazone groups, f) at least two fluorenone naphthylhydrazone groups, g) at least two fluorenone tetrazolylhydrazone groups, h) at least two fluorenone stilbenylhydrazone groups, or i) at least two fluorenone (9H-fluoren-9-ylidene)benzylhydrazone groups. Some of these fluoreneones may be represented by the formula where n is an integer between 2 and 6, inclusive; R1 is hydrogen, alkyl, or aryl; R2 is alkylsulfonylphenyl or one of its derivatives; X is a linking group having the formula —(CH2)m—, branched or linear. The compounds may form electrostatic imaging systems in combination with (b) a charge generating compound; and (c) an electrically conductive substrate.
摘要翻译:本发明涉及一种新型有机光感受器,其包括:(a)电荷传输材料,其包含芴酮腙,其具有a)至少两个芴酮烷基磺酰基苯基腙基团,b)至少两个芴酮吡咯基腙基团,c)至少两个芴酮苯并三唑基腙基团,d) 至少两个芴酮砜基腙基团,e)至少两个芴酮吡唑基腙基团,f)至少两个芴酮萘基腙基团,g)至少两个芴酮四唑腙基团,h)至少两个芴酮茋基腙基团,或i)至少两个芴酮 (9H-芴-9-亚基)苄腙基团。 这些芴酮中的一些可以由下式表示:其中n是2和6之间的整数,包括端值在内; R 1是氢,烷基或芳基; R 2是烷基磺酰基苯基或其衍生物之一; X是具有下式的连接基团 - (CH 2 CH 2)m - 支链或直链。 所述化合物可以与(b)产生电荷的化合物组合形成静电成像系统; 和(c)导电基板。
摘要:
The addition of certain aromatic substituted benzotriazole compounds to a lubricant imparts improved oxidation stability to the lubricant. The oxidation stability is particularly enhanced when the substituents on the substituted aromatic ring are strong electron donors.
摘要:
A method of preparing a compound of the general formula: ##STR1## in which: R.sup.1 and R.sup.2 independently represent a hydrogen atom, an alkyl or substituted alkyl group, an aryl or substituted aryl group, an aralkyl or substituted aralkyl group, a cycloaliphatic or substituted cycloaliphatic group or a heterocyclic or substituted heterocyclic group providing R.sup.1 and R.sup.2 do not both represent cyclic groups of aromatic nature, or R.sup.1 and R.sup.2 together may represent the necessary atoms to complete a non-aromatic heterocyclic ring,R.sup.3, R.sup.4, R.sup.5 and R.sup.6 independently represent a hydrogen atom or any substituent providing the sum of their .sigma..sub.p constants has a value of less than +0.5, or R.sup.3 and R.sup.4 and/or R.sup.5 and R.sup.6 may represent the necessary atoms to complete an alicyclic or aromatic ring, R.sup.3 and R.sup.2 and/or R.sup.1 and R.sup.6 may represent the necessary atoms to complete a non-aromatic heterocyclic ring,R.sup.7 and R.sup.9 independently represent a hydrogen atom or any carbon linked substituent containing up to 16 carbon atoms,R.sup.8 and R.sup.10 independently represent a hydrogen atom, an alkyl group having 1 to 4 carbon atoms or any two adjacent substituents R.sup.7, R.sup.8, R.sup.9 and R.sup.10 together may complete an alicyclic or aromatic ring, andX.sup.- represents an anion,comprising reacting an amine of the general formula: ##STR2## in which R.sup.1 to R.sup.6 are as defined above, with a thiopyrylium salt of the general formula: ##STR3## in which X.sup.- and R.sup.7 to R.sup.10 are as defined above, to yield the desired compound.The compounds of formula (I), many of which are new, are useful as sensitizers or photoconductors.
摘要:
Polymers containing recurring 2,5-oxolanylene units wherein at least 60 percent of the units are joined directly to one another so as to provide segments consisting of at least 6 of said units.