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公开(公告)号:US20030055280A1
公开(公告)日:2003-03-20
申请号:US10057548
申请日:2002-01-23
IPC分类号: C07C069/76
CPC分类号: C09K19/52 , B33Y70/00 , C09K19/20 , C09K19/2007 , C09K2019/0448 , C09K2019/2078 , Y10S585/935 , Y10T428/10
摘要: Novel platform molecules and polymerizable mesogens made therefrom; novel synthetic pathways for making such platform molecules and polymerizable mesogens.
摘要翻译: 由其制备的新型平台分子和可聚合介晶; 用于制备这种平台分子和可聚合介晶的新型合成途径。
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公开(公告)号:US20020007048A1
公开(公告)日:2002-01-17
申请号:US09484484
申请日:2000-01-18
发明人: Hubert Koster , Ralph Worl
IPC分类号: C07G003/00 , C07G011/00 , C07H015/00 , C07H017/00 , C07H021/00 , C07H021/02 , C07H021/04
CPC分类号: C07H21/00 , C07B2200/11 , C07C25/18 , C07C43/225 , C07C69/708 , C07C69/76 , C07C211/14 , C07C233/78 , C07C235/10 , C07C255/16 , C07K1/02 , C07K14/003 , Y10S585/93 , Y10S585/932 , Y10S585/933 , Y10S585/934 , Y10S585/935
摘要: Multifunctional liquid phase carriers (LPCs) and methods of using LPCs for the preparation of biopolymers are provided. The LPCs are highly symmetrical compounds that possess more than two points of attachment for biopolymer synthesis. The LPCs have the formula Sp(X1)n, where Sp is a highly symmetrical moiety such that all X1 groups are equivalent. X1 is a functional group that is suitable for biopolymer synthesis, including OH, SH, NH2, COOH and the like. Biopolymers that may be produced using the methods provided include oligonucleotides, peptides, protein nucleic acids (PNAs) and oligosaccharides. Analogs of the biopolymers may also be prepared using the methods.
摘要翻译: 提供了多功能液相载体(LPCs)和使用LPC制备生物聚合物的方法。 LPC是高度对称的化合物,其具有用于生物聚合物合成的两个以上连接点。 LPC具有公式Sp(X1)n,其中Sp是高度对称的部分,使得所有X1基团相当。 X1是适用于生物聚合物合成的官能团,包括OH,SH,NH 2,COOH等。 可以使用提供的方法产生的生物聚合物包括寡核苷酸,肽,蛋白质核酸(PNA)和寡糖。 生物聚合物的类似物也可以使用这些方法制备。
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公开(公告)号:US4216345A
公开(公告)日:1980-08-05
申请号:US946929
申请日:1978-09-28
IPC分类号: C07C7/13 , C07C15/107 , C07C15/02
CPC分类号: C07C15/107 , C07C7/13 , Y10S585/935
摘要: Process for the preparation of alkylbenzenes by partial chlorination of linear C.sub.9 -C.sub.15 paraffins, catalytic alkylation of benzene with the resulting mixture and fractionation by distillation of the alkylation products.At least a part of the unreacted paraffins recovered by fractionation and to be recycled to the chlorination stage is submitted, continuously or intermittently, to a purification treatment with molecular sieves.The content in undesired by-products of the alkylbenzenes can thus be maintained at negligibly low values.
摘要翻译: 通过线性C 9 -C 15链烷烃的部分氯化制备烷基苯的方法,用所得混合物对苯进行催化烷基化并通过蒸馏烷基化产物进行分馏。 至少一部分通过分级回收并被再循环到氯化阶段的未反应的链烷烃被连续或间歇地进行到用分子筛进行纯化处理。 因此烷基苯不希望的副产物的含量可以保持在可忽略的低值。
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公开(公告)号:US4118428A
公开(公告)日:1978-10-03
申请号:US764835
申请日:1977-02-02
CPC分类号: B01J35/10 , B01J27/08 , C07C17/08 , B01J35/1014 , B01J35/1019 , B01J35/1042 , B01J35/109 , Y10S585/935
摘要: 2-CHLOROALKANES ARE SELECTIVELY PREPARED FROM DETERGENT RANGE ALPHA OLEFINS I.E., OLEFINS IN THE C.sub.7 to C.sub.30 range, by reacting the alpha olefin with hydrogen chloride in the presence of a metal chloride catalyst supported on a carrier having an average pore diameter of at least 30 millimicrons (m.mu.).
摘要翻译: 2-氯代烷烃通过在负载在平均孔径至少为30的载体上的金属氯化物催化剂的存在下使α-烯烃与氯化氢反应,在C7至C30范围内从洗涤剂范围中烯烃,烯烃中选择性地制备 毫克(m)。
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公开(公告)号:US3872181A
公开(公告)日:1975-03-18
申请号:US28893772
申请日:1972-09-14
发明人: CHAPMAN CHARLES C
CPC分类号: C07C9/16 , C07C2/62 , C07C17/08 , C07C2527/1206 , Y10S585/935 , C07C19/08
摘要: An improved HF alkylation process is described which comprises alkylating an isoparaffin with an olefin, separating a stream containing HF and ethane from the reaction effluent, contacting this separated stream with ethylene to convert the HF content of the stream to ethyl fluoride, thereafter separating ethane free of HF from the ethyl fluoride. A preferred embodiment comprises passing the separated ethyl fluoride to the alkylation zone to provide at least a portion of the ethyl fluoride requirements for an improved ethyl fluoride promoted HF alkylation process.
摘要翻译: 描述了一种改进的HF烷基化方法,其包括用烯烃烷基化异链烷烃,从反应流出物中分离含有HF和乙烷的物流,使该分离的物流与乙烯接触,将该流的HF含量转化成乙基氟,然后分离出无乙烷 的氟化乙烯。 一个优选的实施方案包括将分离出的氟化乙烯通过烷基化区以提供氟乙烯促进的HF烷基化方法中至少一部分氟化乙烯的要求。
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公开(公告)号:US3851007A
公开(公告)日:1974-11-26
申请号:US40519573
申请日:1973-10-10
申请人: BAYER AG
发明人: EITER K
CPC分类号: C07C11/02 , C07C1/328 , C07C2/861 , C07C5/09 , Y10S585/931 , Y10S585/933 , Y10S585/935 , C07C11/22
摘要: 1. A PROCESS FOR THE PREPARATION OF 9-TRICOSYNE COMPRISING REACTING AN ACETYLIDE OF AN ACETYLIDE OF THE FORMULA
HC=C-R
WITH A 1-HALOALKANE OF THE FORMULA
HAL-R''
WHEREIN ONE OF R AND R'' IS A STRAIGHT CHAIN ALKYL RADICAL OF 8 CARBON ATOMS AND THE OTHER IS A STRAIGHT CHAIN ALKYL RADICAL OF 13 CARBON ATOMS, AND THE HALOGEN IS BROMINE OR IODINE.-
公开(公告)号:US3696158A
公开(公告)日:1972-10-03
申请号:US3696158D
申请日:1970-08-26
申请人: GEN ELECTRIC
发明人: RELLES HOWARD M
CPC分类号: C07C22/04 , C07C15/48 , C07C17/00 , Y10S585/935 , C07C25/24
摘要: Although phosgene itself does not react with the carbonyl group of acetylbenzenes, the adduct of phosgene and pyridine will react converting the acetyl group to either the Alpha -chlorovinyl or Alpha , Alpha -dichloroethyl group. The Alpha , Alpha dichloroethyl group can be converted to the Alpha -chlorovinyl group and the latter can be dehydrohalogenated to the ethynyl group. This reaction permits low cost phosgene to be substituted for the much more expensive phosphorus pentachloride thereby providing an economical process for converting acetylbenzenes to the corresponding ethynylbenzenes which are useful in making polyacetylenes.
摘要翻译: 虽然光气本身不与乙酰苯的羰基反应,但光气和吡啶的加合物将反应将乙酰基转化为α-氯乙烯基或α,α-二氯乙基。 α,α-二氯乙基可以转化成α-氯乙烯基,后者可以被脱卤化氢化成乙炔基。 该反应允许将低成本光气替代为更加昂贵的五氯化磷,从而提供了将乙酰苯转化成可用于制备聚乙炔的相应乙炔基苯的经济方法。
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公开(公告)号:US3676514A
公开(公告)日:1972-07-11
申请号:US3676514D
申请日:1959-09-05
发明人: ROSENTHAL ROBERT W
CPC分类号: C07C15/02 , C07C1/26 , C07C2521/18 , C07C2523/44 , Y10S585/935
摘要: A process for adding from one to two methyl substituents to an aromatic hydrocarbon which involves reacting the aromatic hydrocarbon with formaldehyde in an aqueous HCl medium in an atmosphere containing gaseous HCl at an elevated pressure to obtain a chloromethyl aromatic hydrocarbon, reacting the chloromethyl aromatic hydrocarbon with hydrogen in the presence of a hydrogenation catalyst and gaseous HCl at an elevated pressure to obtain the desired methyl aromatic hydrocarbon, hydrogen and gaseous HCl and recycling the latter hydrogen and gaseous HCl to the first stage of the process.
摘要翻译: 一种从一个到两个甲基取代基加成到芳族烃的方法,其中包括使芳族烃与甲酸在含HCl气体的介质中在含有气态HCl的气氛中在升高的压力下反应,得到氯甲基芳烃,使氯甲基芳族烃与 在氢化催化剂和气态HCl的存在下在升高的压力下氢气以获得所需的甲基芳族烃,氢气和气态HCl,并将后者氢气和气态HCl再循环到该方法的第一阶段。
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公开(公告)号:US3657371A
公开(公告)日:1972-04-18
申请号:US3657371D
申请日:1969-07-08
IPC分类号: C10G17/00 , C07C1/00 , C07C2/86 , C07C7/11 , C07C7/17 , C07C7/171 , C07C15/107 , C07C17/00 , C07C17/10 , C07C19/01 , C07C19/10 , C07C67/00 , C07C3/56
CPC分类号: C07C7/17 , C07C2/861 , C07C7/11 , C07C7/171 , C07C15/107 , C07C17/10 , Y10S585/935 , C07C9/00 , C07C9/15 , C07C19/01
摘要: A CONVENTIONAL PROCESS FOR PREPARING ALKYLBENZENES IS CARRIED OUT, WHEREIN LINEAR C9-C15 PARAFFINS ARE CHLORINATED AND CATALYTICALLY ALKYLATED WITH EXCESS BENZENE, FRACTIONATED, AND UNREACTED PARAFFINS AND BENZENE ARE RECYCLED. ACCORDING TO THE INVENTION, BY-PRODUCTS, ESPECIALLY CHLORINATED PRODUCTS, ARE REMOVED FROM THE UNREACTED PARAFFINS BY CONTRACTING THE PARAFFINS, PRIOR TO RECYCLE, WITH CONCENTRATED SULPHURIC ACID, OLEUM OR SULPHURIC ANHYDRIDE.
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公开(公告)号:US3594432A
公开(公告)日:1971-07-20
申请号:US3594432D
申请日:1970-01-15
申请人: RHONE POULENC SA
发明人: MOREL JACQUES
IPC分类号: A23L1/275 , C07C67/00 , C07C401/00 , C07C403/00 , C07C403/24 , C07C5/14
CPC分类号: C07C403/24 , A23L5/47 , Y10S585/933 , Y10S585/935
摘要: RETRODEHYDRO-B-CAROTENE IS PRODUCED IN IMPROVED YIELD BY BROMINATING B-CAROTENE WITH N-BROMOSUCCINIMIDE AND THEN DEHYDROBROMINATING THE RESULTING 4-BROMO-B-CAROTENE IN THE PRESENCE OF AN ALKALI METAL IODIDE.
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