Process for making 1,3,3,3-tetrafluoropropene
    2.
    发明授权
    Process for making 1,3,3,3-tetrafluoropropene 有权
    制备1,3,3,3-四氟丙烯的方法

    公开(公告)号:US08829254B2

    公开(公告)日:2014-09-09

    申请号:US13757894

    申请日:2013-02-04

    Abstract: The present invention describes a process for making CF3CH═CHF (HFO-1234ze). The process involves the addition of carbon tetrachloride (CCl4) to 1,2-dichloroethylene to form CCl3CHClCHCl2. The compound CCl3CHClCHCl2 thus can then either be treated with HF to produce CF3CHClCHClF as the main product, or it can be converted to CCl2═CHCHCl2 (1230za) by dechlorination. CCl2═CHCHCl2 can be treated with HF such that the main product obtained is CF3CHClCHClF. CF3CH═CHCl may be produced as a by-product, but upon treatment with HF, it affords the compound CF3CHClCHClF. The desired compound, CF3CH═CHF (HFO-1234ze), is obtained as a trans/cis mixture by dehydrochlorination of CF3CH2CHClF or by dechlorination of CF3CHClCHClF.

    Abstract translation: 本发明描述了制备CF 3 CH = CHF(HFO-1234ze)的方法。 该方法包括向1,2-二氯乙烯中加入四氯化碳(CCl 4)以形成CCl 3 CHClCHCl 2。 因此,化合物CCl 3 CHClCHCl 2然后可以用HF处理以产生CF 3 CHClCHClF作为主要产物,或者可以通过脱氯将其转化为CCl 2 = CHCHCl 2(1230za)。 CCl 2 = CHCHCl 2可用HF处理,得到的主要产物为CF 3 CHClCHClF。 CF 3 CH = CHCl可以作为副产物生产,但是在用HF处理时,它可以提供化合物CF 3 CHClCHClF。 通过CF 3 CH 2 CHClF的脱氯化氢或通过CF 3 CHClCHClF的脱氯,获得期望的化合物CF 3 CH = CHF(HFO-1234ze),为反式/顺式混合物。

    PROCESS FOR CIS-1-CHLORO-3,3,3-TRIFLUOROPROPENE
    4.
    发明申请
    PROCESS FOR CIS-1-CHLORO-3,3,3-TRIFLUOROPROPENE 有权
    CIS-1-氯-3,3,3-三氟苯酚的方法

    公开(公告)号:US20130150632A1

    公开(公告)日:2013-06-13

    申请号:US13674145

    申请日:2012-11-12

    CPC classification number: C07C17/23 C07B2200/09 C07C17/358 C07C21/18

    Abstract: Disclosed is a process for the preparation of cis-1-chloro-3,3,3-trifluoropropene (cis-1233zd) comprising the steps of (a) providing CF3CHClCHCl2 (233da), and (b) treating the 233da with a dechlorinating agent to produce a mixture of compounds including cis-1-chloro-3,3,3-trifluoropropene, preferably wherein the amount of the cis-isomer generated in the reaction is not less than 30%.

    Abstract translation: 公开了制备顺式-1-氯-3,3,3-三氟丙烯(顺式-1233zd)的方法,包括以下步骤:(a)提供CF 3 CHClCHCl 2(233da),和(b)用脱氯剂处理233da 以产生包括顺式-1-氯-3,3,3-三氟丙烯的化合物的混合物,优选其中在反应中产生的顺式异构体的量不小于30%。

    Process for cis-1-chloro-3,3,3-trifluoropropene
    7.
    发明授权
    Process for cis-1-chloro-3,3,3-trifluoropropene 有权
    顺式-1-氯-3,3,3-三氟丙烯的方法

    公开(公告)号:US08754272B2

    公开(公告)日:2014-06-17

    申请号:US13674145

    申请日:2012-11-12

    CPC classification number: C07C17/23 C07B2200/09 C07C17/358 C07C21/18

    Abstract: Disclosed is a process for the preparation of cis-1-chloro-3,3,3-trifluoropropene (cis-1233zd) comprising the steps of (a) providing CF3CHClCHCl2 (233da), and (b) treating the 233da with a dechlorinating agent to produce a mixture of compounds including cis-1-chloro-3,3,3-trifluoropropene, preferably wherein the amount of the cis-isomer generated in the reaction is not less than 30%.

    Abstract translation: 公开了制备顺式-1-氯-3,3,3-三氟丙烯(顺式-1233zd)的方法,包括以下步骤:(a)提供CF 3 CHClCHCl 2(233da),和(b)用脱氯剂处理233da 以产生包括顺式-1-氯-3,3,3-三氟丙烯的化合物的混合物,优选其中在反应中产生的顺式异构体的量不小于30%。

    PROCESS FOR 1,3,3,3-TETRAFLUOROPROPENE
    9.
    发明申请
    PROCESS FOR 1,3,3,3-TETRAFLUOROPROPENE 有权
    1,3,3,3-四氯丙烯的方法

    公开(公告)号:US20130211156A1

    公开(公告)日:2013-08-15

    申请号:US13757911

    申请日:2013-02-04

    Abstract: The present invention provides a simple three step process for the production of 1,3,3,3-tetrafluoropropene (HFO-1234ze). In the first step, carbon tetrachloride is added to vinyl fluoride to afford the compound CCl3CH2CHClF (HCFC-241fb). HCFC-241fb is then fluorinated with anhydrous HF to afford CF3CH2CHClF (HCFC-244fa) in the second step. Dehydrochlorination of HCFC-244fa, in the third step, affords the desired product, CF3CH═CHF (HFO-1234ze). Following similar chemistry, vinyl chloride may be used in place of vinyl fluoride.

    Abstract translation: 本发明提供了制备1,3,3,3-四氟丙烯(HFO-1234ze)的简单的三步法。 在第一步中,将四氯化碳加入到氟乙烯中,得到化合物CCl 3 CH 2 CHClF(HCFC-241fb)。 然后用无水HF将HCFC-241fb氟化,得到第二步中的CF 3 CH 2 CHClF(HCFC-244fa)。 在第三步中HCFC-244fa的脱氯化氢提供所需产物,CF 3 CH = CHF(HFO-1234ze)。 在类似的化学反应之后,可以使用氯乙烯代替氟乙烯。

    PROCESS FOR MAKING TETRAFLUOROPROPENE
    10.
    发明申请
    PROCESS FOR MAKING TETRAFLUOROPROPENE 有权
    制备四氢呋喃的方法

    公开(公告)号:US20130211155A1

    公开(公告)日:2013-08-15

    申请号:US13757894

    申请日:2013-02-04

    Abstract: The present invention describes a process for making CF3CH═CHF (HFO-1234ze). The process involves the addition of carbon tetrachloride (CCl4) to 1,2-dichloroethylene to form CCl3CHClCHCl2. The compound CCl3CHClCHCl2 thus can then either be treated with HF to produce CF3CHClCHClF as the main product, or it can be converted to CCl2═CHCHCl2 (1230za) by dechlorination. CCl2═CHCHCl2 can be treated with HF such that the main product obtained is CF3CHClCHClF. CF3CH═CHCl may be produced as a by-product, but upon treatment with HF, it affords the compound CF3CHClCHClF. The desired compound, CF3CH═CHF (HFO-1234ze), is obtained as a trans/cis mixture by dehydrochlorination of CF3CH2CHClF or by dechlorination of CF3CHClCHClF.

    Abstract translation: 本发明描述了制备CF 3 CH = CHF(HFO-1234ze)的方法。 该方法包括向1,2-二氯乙烯中加入四氯化碳(CCl 4)以形成CCl 3 CHClCHCl 2。 因此,可以用HF处理化合物CCl 3 CHClCHCl 2以产生CF 3 CHClCHClF作为主要产物,或者可以通过脱氯将其转化为CCl 2 = CHCHCl 2(1230za)。 CCl 2 = CHCHCl 2可用HF处理,得到的主要产物为CF 3 CHClCHClF。 CF 3 CH = CHCl可以作为副产物来制备,但是在用HF处理时,得到化合物CF 3 CHClCHClF。 通过CF 3 CH 2 CHClF的脱氯化氢或通过CF 3 CHClCHClF的脱氯,获得期望的化合物CF 3 CH = CHF(HFO-1234ze),为反式/顺式混合物。

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