Mono- and di-substituted (diphosphonoalkylamino
methyl)-4-hydroxybenzenesulfonic acid
    41.
    发明授权
    Mono- and di-substituted (diphosphonoalkylamino methyl)-4-hydroxybenzenesulfonic acid 失效
    单 - 和二 - 取代(二膦酰基烷基氨基甲基)-4-羟基苯磺酸

    公开(公告)号:US5043099A

    公开(公告)日:1991-08-27

    申请号:US554041

    申请日:1990-07-13

    IPC分类号: C02F5/14 C07F9/38 C23F11/167

    摘要: New polyamino-polyphosphonic-hydroxybenzenesulfonic acid compounds as the free acid or their alkali or alkaline earth metal salt. Specifically, the compounds are the mono- and di-(1,1-diphosphono-1-alkylaminomethyl)-4-hydroxybenzenesulfonic acid. These compounds are useful as corrosion inhibiting agents for metal/water applications.

    摘要翻译: 新的聚氨基 - 多膦酸 - 羟基苯磺酸化合物作为游离酸或其碱金属或碱土金属盐。 具体地,化合物是单 - 和二 - (1,1-二膦酰基-1-烷基氨基甲基)-4-羟基苯磺酸。 这些化合物可用作金属/水应用的腐蚀抑制剂。

    Corrosion inhibitor
    42.
    发明授权
    Corrosion inhibitor 失效
    腐蚀抑制剂

    公开(公告)号:US5017306A

    公开(公告)日:1991-05-21

    申请号:US269209

    申请日:1988-11-09

    IPC分类号: C09K15/32 C07F9/38 C23F11/167

    CPC分类号: C23F11/1676 C07F9/3808

    摘要: A method of preparing phosphonate compositions comprising di-(phosphonomethyl) formal is disclosed which comprises (a) forming an intimate mixture of hydroxymethylphosphonic acid and formaldehyde or its condensates, said mixture having a least about 0.5 equivalents of formaldehyde per equivalent of hydroxymethylphosphonic acid; and (b) subjecting said intimate mixture to a temperature of between about 100.degree. C. and 180.degree. C. for a time sufficient to allow the components to react to form a reacted mixture comprising di-(phosphonomethyl) formal. Di-(phosphonomethyl) formal, phosphonate compositions wherein at least about 20 more % of the phosphonate groups are present as di-(phosphonomethyl) formal, and phosphonate compositions which comprise hydroxymethylphosphonic acid and di-(phosphonomethyl) formal such that the mole ratio of phosphonate groups present as di-(phosphonomethyl) formal to phosphonate groups present as hydroxymethylphosphonate is at least about 1:3, as disclosed, may be used for corrosion inhibition in aqueous systems.

    Inhibiting corrosion in aqueous systems
    44.
    发明授权
    Inhibiting corrosion in aqueous systems 失效
    在水体系中抑制腐蚀

    公开(公告)号:US4981648A

    公开(公告)日:1991-01-01

    申请号:US269210

    申请日:1988-11-09

    IPC分类号: C23F11/167

    摘要: A process is disclosed for inhibiting corrosion of an iron based metal in contact with the system water in an aqueous system, which comprises incorporating into the system water an effective amount of bis-phosphonic acid ethers selected from the group consisting of compounds having the formula (HO).sub.2 OP--R--(OR').sub.n --OR--PO(OH).sub.2 wherein each R is independently selected from the group consisting of methylene and ethylene, wherein R' is selected from the group consisting of methylene, ethylene and ethylene substituted with one or more methyl groups and wherein n is an integer from 0 to 4, and water soluble salts of said bis-phosphonic acid ethers. Advantageous corrosion inhibition using the bis-phosphonic acid ethers in combination with hydroxymethylphosphonic acid is also disclosed.

    Intermediates for substituted 4-benzoyl-3,5-dioxotetrahydropyrans and
thiopyrans
    46.
    发明授权
    Intermediates for substituted 4-benzoyl-3,5-dioxotetrahydropyrans and thiopyrans 失效
    取代的4-苯甲酰基-3,5-二氧代四氢吡喃和硫代吡喃的中间体

    公开(公告)号:US4777272A

    公开(公告)日:1988-10-11

    申请号:US119876

    申请日:1987-11-13

    摘要: Compounds of the formula ##STR1## wherein X is oxygen, sulfur or sulfonyl;R is halogen; C.sub.1 -C.sub.2 alkyl; C.sub.1 -C.sub.2 alkoxy; nitro; cyano; C.sub.1 -C.sub.2 haloalkyl; or R.sup.a SO.sub.m - wherein m is 0 or 2 and R.sup.a is C.sub.1 -C.sub.2 alkyl;R.sup.1 is hydrogen or C.sub.1 -C.sub.4 alkyl;R.sup.2 is hydrogen or C.sub.1 -C.sub.4 alkyl; orR.sup.1 and R.sup.2 together are alkylene having 2 to 5 carbon atoms;R.sup.3 is hydrogen or C.sub.1 -C.sub.4 alkyl;R.sup.4 is hydrogen or C.sub.1 -C.sub.4 alkyl; orR.sup.3 and R.sup.4 together are alkylene having 2 to 5 carbon atoms;R.sup.5 and R.sup.6 independently are (1) hydrogen; (2) halogen; (3) C.sub.1 -C.sub.4 alkyl; (4) C.sub.1 -C.sub.4 alkoxy; (5) trifluoromethoxy; (6) cyano; (7) nitro; (8) C.sub.1 -C.sub.4 haloalkyl; (9) R.sup.b SO.sub.n -wherein n is the integer 0, 1 or 2; and R.sup.b is (a) C.sub.1 -C.sub.4 alkyl; (b) C.sub.1 -C.sub.4 alkyl substituted with halogen or cyano; (c) phenyl; or (d) benzyl; (10) --NR.sup.c R.sup.d wherein R.sup.c and R.sup.d independently are hydrogen or C.sub.1 -C.sub.4 alkyl; (11) R.sup.e C(O)--wherein R.sup.e is C.sub.1 -C.sub.4 alkyl or C.sub.1 -C.sub.4 alkoxy; or (12) --SO.sub.2 NR.sup.c R.sup.d wherein R.sup.c and R.sup.d are as defined; and (13) --N (R.sup.c)C(O)R.sup.d wherein R.sup.c and R.sup.d are as defined and their salts are useful as herbicides.

    摘要翻译: 其中X是氧,硫或磺酰基的式“IMAGE”的化合物; R是卤素; C1-C2烷基; C1-C2烷氧基; 硝基 氰基; C1-C2卤代烷基; 或RaSOm-,其中m为0或2,Ra为C1-C2烷基; R1是氢或C1-C4烷基; R2是氢或C1-C4烷基; 或R 1和R 2一起是具有2至5个碳原子的亚烷基; R3是氢或C1-C4烷基; R4是氢或C1-C4烷基; 或者R 3和R 4一起是具有2至5个碳原子的亚烷基; R5和R6独立地是(1)氢; (2)卤素; (3)C 1 -C 4烷基; (4)C1-C4烷氧基; (5)三氟甲氧基; (6)氰基; (7)硝基; (8)C 1 -C 4卤代烷基; (9)RbSOn-其中n是整数0,1或2; 并且R b是(a)C 1 -C 4烷基; (b)被卤素或氰基取代的C 1 -C 4烷基; (c)苯基; 或(d)苄基; (10)-NRcRd其中Rc和Rd独立地是氢或C1-C4烷基; (11)ReC(O) - 其中Re为C 1 -C 4烷基或C 1 -C 4烷氧基; 或(12)-SO 2 NR c R d其中R c和R d如所定义; 和(13)-N(Rc)C(O)R d,其中R c和R d如所定义,并且它们的盐可用作除草剂。

    Substituted 4-benzoyl-3,5-dioxotetrahydropyrans and thiopyrans useful as
herbicides
    47.
    发明授权
    Substituted 4-benzoyl-3,5-dioxotetrahydropyrans and thiopyrans useful as herbicides 失效
    取代的4-苯甲酰基-3,5-二氧代四氢吡喃和噻喃可用作除草剂

    公开(公告)号:US4728745A

    公开(公告)日:1988-03-01

    申请号:US872080

    申请日:1986-06-09

    摘要: Compounds of the formula ##STR1## wherein X is oxygen, sulfur or sulfonyl;R is halogen; C.sub.1 -C.sub.2 alkyl; C.sub.1 -C.sub.2 alkoxy; nitro; cyano; C.sub.1 -C.sub.2 haloalkyl; or R.sup.a SO.sub.m -- wherein m is 0 or 2 and R.sup.a is C.sub.1 -C.sub.2 alkyl;R.sup.1 is hydrogen or C.sub.1 -C.sub.4 alkyl;R.sup.2 is hydrogen or C.sub.1 -C.sub.4 alkyl; orR.sup.1 and R.sup.2 together are alkylene having 2 to 5 carbon atoms;R.sup.3 is hydrogen or C.sub.1 -C.sub.4 alkyl;R.sup.4 is hydrogen or C.sub.1 -C.sub.4 alkyl; orR.sup.3 and R.sup.4 together are alkylene having 2 to 5 carbon atoms;R.sup.5 and R.sup.6 independently are (1) hydrogen; (2) halogen; (3) C.sub.1 -C.sub.4 alkyl; (4) C.sub.1 -C.sub.4 alkoxy; (5) trifluoromethoxy; (6) cyano; (7) nitro; (8) C.sub.1 -C.sub.4 haloalkyl; (9) R.sup.b SO.sub.n -- wherein n is the integer 0, 1 or 2; and R.sup.b is (a) C.sub.1 -C.sub.4 alkyl; (b) C.sub.1 -C.sub.4 alkyl substituted with halogen or cyano; (c) phenyl; or (d) benzyl; (10) --NR.sup.c R.sup.d wherein R.sup.c and R.sup.d independently are hydrogen or C.sub.1 -C.sub.4 alkyl; (11) R.sup.e C(O)-- wherein R.sup.e is C.sub.1 -C.sub.4 alkyl or C.sub.1 -C.sub.4 alkoxy; or (12) --SO.sub.2 NR.sup.c R.sup.d wherein R.sup.c and R.sup.d are as defined; and (13) --N(R.sup.c)C(O)R.sup.d wherein R.sup.c and R.sup.d are as defined and their salts are useful as herbicides.

    摘要翻译: 其中X是氧,硫或磺酰基的式“IMAGE”的化合物; R是卤素; C1-C2烷基; C1-C2烷氧基; 硝基 氰基; C1-C2卤代烷基; 或RaSOm-,其中m为0或2,Ra为C1-C2烷基; R1是氢或C1-C4烷基; R2是氢或C1-C4烷基; 或R 1和R 2一起是具有2至5个碳原子的亚烷基; R3是氢或C1-C4烷基; R4是氢或C1-C4烷基; 或者R 3和R 4一起是具有2至5个碳原子的亚烷基; R5和R6独立地是(1)氢; (2)卤素; (3)C 1 -C 4烷基; (4)C1-C4烷氧基; (5)三氟甲氧基; (6)氰基; (7)硝基; (8)C 1 -C 4卤代烷基; (9)RbSO n-,其中n是整数0,1或2; 并且R b是(a)C 1 -C 4烷基; (b)被卤素或氰基取代的C 1 -C 4烷基; (c)苯基; 或(d)苄基; (10)-NRcRd其中Rc和Rd独立地是氢或C1-C4烷基; (11)ReC(O) - 其中Re为C1-C4烷基或C1-C4烷氧基; 或(12)-SO 2 NR c R d其中R c和R d如所定义; 和(13)-N(Rc)C(O)R d,其中R c和R d如所定义,并且它们的盐可用作除草剂。

    Method for preparation of mercaptobenzoates
    48.
    发明授权
    Method for preparation of mercaptobenzoates 失效
    巯基苯甲酸酯的制备方法

    公开(公告)号:US4692545A

    公开(公告)日:1987-09-08

    申请号:US940997

    申请日:1986-12-12

    申请人: Charles G. Carter

    发明人: Charles G. Carter

    IPC分类号: C07C149/40

    CPC分类号: C07C323/00

    摘要: A method of preparing compounds of the formula ##STR1## wherein R is alkyl, alkenyl, benzyl or aromatic, R.sup.1 is alkyl and X is halogen or nitro comprising reacting a compound of the formula ##STR2## wherein R.sup.1 and X are defined as above with a mercaptan having the formula R--SH in the presence of an inorganic base and a polar aprotic solvent.

    摘要翻译: 制备下式化合物的方法其中R是烷基,烯基,苄基或芳族,R1是烷基,X是卤素或硝基,包括使下式定义的化合物其中R1和X与上述定义的化合物反应, 在无机碱和极性非质子溶剂存在下具有式R-SH的硫醇。