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1. 发明授权

US4006195A Process for the catalytic production of dichlorotoluenes 失效
标题翻译：催化生产二氯甲苯的方法
公开(公告)号：US4006195A
公开(公告)日：1977-02-01
申请号：US612071
申请日：1975-09-10
申请人： Samuel Gelfand
发明人： Samuel Gelfand
IPC分类号： C07C17/12 , C07C25/04
CPC分类号： C07C17/12
摘要： An improved process for the catalytic production of dichlorotoluenes, especially 2,4-dichlorotoluene, formed by reacting para-chlorotoluene with chlorine in the presence of a catalyst to form a mixture of chlorinated toluenes and thereafter separating from said mixture a dichlorotoluene fraction containing 2,4-dichlorotoluene, the improvement comprising reacting para-chlorotoluene in the liquid phase with chlorine gas in the presence of antimony trichloride catalyst. The mixed chlorotoluene product obtained contains in excess of 85% 2,4-dichlorotoluene, which mixture is then treated with a base, catalyst is removed by separation or filtration and the remaining product is distilled to yield a substantially pure 2,4-dichlorotoluene product.
摘要翻译：催化生产二氯甲苯，特别是2,4-二氯甲苯的改进方法是通过在催化剂存在下使对氯甲苯与氯反应而形成的，以形成氯化甲苯的混合物，然后从所述混合物中分离出含有二氯甲苯的二氯甲苯馏分， 4-氯二氯甲苯，其改进包括在三氯化锑催化剂存在下使液相中的对氯甲苯与氯气反应。获得的混合氯甲苯产物含有超过85％的2,4-二氯甲苯，然后用碱处理该混合物，通过分离或过滤除去催化剂，蒸馏剩余产物，得到基本上纯的2,4-二氯甲苯产物。

2. 发明授权

US4010214A Process for the preparation of 2,5-dichloro-p-xylene 失效
标题翻译： 2,5-二氯对二甲苯的制备方法
公开(公告)号：US4010214A
公开(公告)日：1977-03-01
申请号：US547067
申请日：1975-02-04
申请人： Samuel Gelfand
发明人： Samuel Gelfand
IPC分类号： B01J27/00 , C07B61/00 , C07C17/00 , C07C17/12 , C07C25/125 , C07C67/00 , C07C25/02
CPC分类号： C07C17/12
摘要： A process for the preparation of 2,5-dichloro-p-xylene comprises reacting p-xylene with chlorine in the presence of a catalyst system comprising a catalyst selected from the group consisting of halides of iron, halides of antimony and mixtures thereof and a co-catalyst selected from the group consisting of organic sulfur compounds characterized by the presence of divalent sulfur.
摘要翻译：制备2,5-二氯对二甲苯的方法包括在催化剂体系存在下使对二甲苯与氯反应，该催化剂体系包含选自铁卤化物，锑卤化物及其混合物的催化剂，以及选自由二价硫的存在表征的有机硫化合物的助催化剂。

3. 发明授权

US4005153A Polyhalocyclopentenyl phenyl compounds 失效
标题翻译：多卤代环戊烯基苯基化合物
公开(公告)号：US4005153A
公开(公告)日：1977-01-25
申请号：US585207
申请日：1975-06-09
申请人： Samuel Gelfand
发明人： Samuel Gelfand
IPC分类号： C07C17/04 , C07C17/26 , C07C25/18 , C07C51/295 , C07C57/60
CPC分类号： C07C57/60 , C07C17/04 , C07C17/269 , C07C25/18 , C07C45/43 , C07C45/68 , C07C49/697 , C07C51/295
摘要： There are provided compounds of the formulae ##STR1## WHEREIN: X is a halogen atom, such as chlorine and bromine;Y is selected from the group consisting of halogen, such as chlorine and bromine, an alkyl radical and hydrogen, at least one of said Y substituents being halogen;R is selected from the group consisting of chlorine, bromine, fluorine and trifluoromethyl;Ar is an aromatic nucleus containing a hydrogen substituent on a ring position adjacent to the point of polyhalocyclopentadiene or polyhalocyclopentenone attachments, aromatic being defined herein as a derivative of benzene or a carbon compound which contains one or more carbon rings; andN is from 2 to 4, z is from 1 to 2 inclusive, q is a number from 0 to 1, said q being 0 when z is 2.The compounds of this invention are pesticidal, being especially effective as nematocides.
摘要翻译：提供了下列化合物： WHEREIN：

4. 发明授权

US4092369A Process for the preparation of chloroalkylbenzene chlorides 失效
标题翻译：氯烷基苯氯化物的制备方法
公开(公告)号：US4092369A
公开(公告)日：1978-05-30
申请号：US704729
申请日：1976-07-12
申请人： Samuel Gelfand
发明人： Samuel Gelfand
IPC分类号： B01J31/00 , C07B61/00 , C07C17/00 , C07C17/14 , C07C25/02 , C07C67/00
CPC分类号： C07C17/14
摘要： A process for the selective mono.alpha.-chlorination of alkyl chloroaromatic compounds comprises reacting chlorine with an alkyl chloroaromatic compound of the formula: ##STR1## WHERE R is methyl or ethyl and n is 1 or 2; in the presence of an organic sulfide catalyst selected from the group consisting of aryl sulfides, alkyl sulfides, alkylaryl sulfides and heterocyclic sulfides.
摘要翻译：烷基氯芳族化合物的选择性单α-氯化方法包括使氯与下式的烷基氯代芳族化合物反应：其中R是甲基或乙基，n是1或2; 在选自芳基硫化物，烷基硫化物，烷基芳基硫化物和杂环硫化物的有机硫化物催化剂存在下进行。

5. 发明授权

US4049727A Polyhaloindene compounds 失效
标题翻译：聚卤代烯烃化合物
公开(公告)号：US4049727A
公开(公告)日：1977-09-20
申请号：US612072
申请日：1975-09-10
申请人： Samuel Gelfand
发明人： Samuel Gelfand
IPC分类号： C07C23/34 , D06M13/07 , C07C25/14
CPC分类号： C07C23/34 , D06M13/07
摘要： New compounds and a process for the preparation thereof are disclosed of the formula: ##STR1## WHEREIN EACH R is independently halogen or lower alkyl and n is from 2 to 4. These compounds are useful as chemical intermediates and fire retardant additives.
摘要翻译：新化合物及其制备方法公开于下列公式：每个R独立地为卤素或低级烷基，n为2至4.这些化合物可用作化学中间体和阻燃添加剂。

6. 发明授权

US3957891A Substituted alpha, beta-dichlorostyrenes 失效
标题翻译：替代阿尔法，二苯并噻吩类
公开(公告)号：US3957891A
公开(公告)日：1976-05-18
申请号：US401768
申请日：1973-09-28
申请人： Samuel Gelfand
发明人： Samuel Gelfand
IPC分类号： C07C17/266 , C07C17/269 , C07C25/28
CPC分类号： C07C25/28 , C07C17/266 , C07C17/269
摘要： New compounds and a process for the preparation thereof are disclosed of the formula:R.sub.n ArCCl=CClHwherein Ar is an aromatic nucleus, aromatic being defined herein as a derivative of benzene, each R is independently selected from halogen, alkyl and haloalkyl and n is an integer from 2 to 4. The above compounds are useful as chemical intermediates for the preparation of compounds having herbicidal activity.

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