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    • 3. 发明专利
    • DE2419321A1
    • 1974-11-07
    • DE2419321
    • 1974-04-22
    • MONSANTO CHEMICALS
    • BAIN PETER JAMES STRATFORDMCCALL ERNEST BRYSON
    • C08C19/30C08G18/69C08G18/72C08D5/02C08F27/10
    • 1439618 Thermally-reversible vulcanizates MONSANTO Ltd 2 April 1974 [25 April 1973] 19563/73 Heading C3P Thermally-reversible vulcanizates are obtained by reacting (1) a polymer having amino groups of formula -NHR 1 , wherein R 1 is hydrogen or an aliphatic or cycloaliphatic group, attached to non-aromatic carbon atoms of polymer chains or to non-aromatic carbon atoms of groups pendant from polymer chains, with (2) a polyisothiocyanate of formula B(NCS) n+1 , wherein R is an organic radical to which the nitrogen atom of each isothiocyanate group is attached at a non-aromatic carbon atom, and (n + 1) is the valency of R. The products have polymer chains cross-linked or chainextended by units of formula The process is conducted under conditions which avoid permanent cross-linking, i.e. absence of free-radical generators and of sulphur-containing vulcanizing agents. In the examples, liquid polybutadienes containing nitrile groups are prepared by polymerizing butadiene in the presence of azonitrile initiators; are then reduced with LiAlH 4 to produce amine-containing polymers; and are then reacted with hexamethylene bis-isothiocyanate or p-menthane- 1, 8-bis-isothiocyanate.
    • 5. 发明专利
    • Vulcanisation process and novel bis(dithiocarbamates) for use therein
    • GB1038727A
    • 1966-08-10
    • GB605964
    • 1964-02-13
    • MONSANTO CHEMICALS
    • DIBBO ALANBAIN PETER JAMES STRATFORD
    • C08K5/36C08K5/39
    • The invention comprises aliphaticoxycarbonylmethylene bis (dithiocarbamate) compounds of the formula where R1 and R11 are each an alkyl group and R is an alkyl group containing at least 4 carbon atoms or where (R1)(R11)N- represents an alkylmorpholino group and R is an alkyl group. They may be obtained by reacting a salt, preferably an alkali metal salt, of the appropriately substituted dithiocarbamic acid with an ester of a dihaloacetic acid, for example dichloracetic acid. The reaction is generally effected between 50 and 120 DEG C. in an inert solvent which may be aqueous but is preferably organic, e.g. acetone which may contain a small amount of water, dimethylformamide or an alcohol, the alkyl radical of the alcohol preferably being the same as the alkyl group esterifying the dihaloacetic acid. Where R1 and R11 are each alkyl and R is an alkyl group containing four or more carbons, R1 and R11 are preferably straight chain alkyl containing up to 4 carbons and R is preferably C4- 14 alkyl having either a straight or branched chain. Specified new compounds are neopentyl-, n-heptyl- and 2-ethyl hexyl - oxy carbonyl methylene bis (N,N - dimethyldithiocarbamate), n - hexyl oxycarbonyl methylene - bis (N,N - diethyldithiocarbamate) and methyl bis [2,6-dimethylmorpholino (thiocarbonyl) thio] acetate. The products have applications as delayed action accelerators in the vulcanization of natural and synthetic rubbers (see Division C3).
    • 6. 发明专利
    • Process for the arylation of aromatic compounds
    • GB959605A
    • 1964-06-03
    • GB3628761
    • 1961-10-10
    • MONSANTO CHEMICALS
    • BAIN PETER JAMES STRATFORDMCCALL ERNEST BRYSON
    • C07C2/86C07C17/26C07C17/32C07C25/18C07C41/30C07D213/06C07D213/127C07D333/08C07D333/38C07D333/76
    • An aryl (carbocyclic or heterocyclic) group is introduced into an aromatic (carbocyclic or heterocyclic) compound by heating the latter with an aromatic compound containing a nuclear-bound sulphonyl halide or sulphonic acid group or a salt of the latter which decomposes under the reaction conditions, in the presence of a catalyst that is a metal, a metal compound, an organic nitrogen compound, a polyhydric phenol, a quinone or a compound containing an aliphatic group of 6 or more carbon atoms. Reaction temperatures of 125-300 DEG C. and catalyst proportions of 0.0001-0.5 gm. mol. per gm. mol. of arylating agent are specified. Metal catalysts specified are copper, platinum, palladium, ruthenium, sodium, potassium, calcium, cobalt, lead, manganese, mercury, silver, titanium and compounds thereof. Organic nitrogen catalysts include amines, amine salts, amides, azo compounds and nitro compounds. Catalytic polyhydric phenols include polyhydroxy-benzenes and naphthalenes, hydroquinone and pyrogallol. Catalytic quinones include benzo- and naphtho-quinones. The catalyst containing an aliphatic group of 6 or more carbon atoms may have the group as a straight or branched chain or as a cycloaliphatic system e.g. a saturated or unsaturated hydrocarbon, a halogeno hydrocarbon, an alcohol, a carboxylic acid, an ester or an ether. The aromatic compounds that may be arylated include furan, benzofuran, thiophene, benzothiophene, dibenzothiophene, chlorobenzene, bromobenzene, p-chlorotoluene, o-dichlorobenzene, 2-chloronaphthalene, 4-dichlorodiphenyl, anisole, phenetole, diphenyl ether, 2-ethyl-thiophene, 2-phenylthiophene, thiophene -2- carboxylicethyl ester, 4-methylbenzofuran, 5-bromobenzofuran, 6 methoxybenzofuran, 4-phenylbenzofuran, 1-cyclohexyldibenzofuran, 1-phenyldibenzofuran, 2, 8-dichlorodibenzofuran, 2-ethoxybenzothiophene, 1-cyclohexyldibenzothiophene, 2-phenyldibenzothiophene, 4-bromodibenzothiophene, 2-phenoxydibenzothiophene and nitrogen containing aromatic compounds. The aromatic radical of the arylating agent may be a chlorophenyl, nitrophenyl, furyl, thienyl, pyridyl, benzothienyl, dibenzothienyl or quinolinyl radical which radical may contain a substituent e.g. an aryl group, a halogen atom, a nitro group, a carboxylic ester group, an alkoxy group or an aryloxy group. Specified arylating agents include p-nitrobenzenesulphonyl chloride and pyridine -3- sulphonyl chloride. Examples describe the preparation of phenylated diphenyl ether, 2, 4, 6-tribromodiphenyl 2, 3, 5, 6-tetrachlorodiphenyl, monophenylated m-diphenoxybenzenes, phenyldibenzofurans, and 2, 5-dibromodiphenyl.ALSO:An aryl (carbocyclic or heterocyclic) group is introduced into an aromatic (carbocyclic or heterocyclic) compound by heating the latter with an aromatic compound containing a nuclear-bound sulphonyl halide or sulphonic acid group or a salt of the latter which decomposes under the reaction conditions, in the presence of a catalyst that is a metal, a metal compound, an organic nitrogen compound, a polyhydric phenol, a quinone or a compound containing an aliphatic group of 6 or more carbon atoms. Reaction temperatures of 125-300 DEG C. and catalyst proportions of 0.0001-0.5 gm. mol. per gm. mol. of arylating agent are specified. Metal catalysts specified are copper, platinum, palladium, ruthenium, sodium, potassium, calcium, cobalt, lead, manganese, mercury, silver, titanium and compounds thereof. Organic nitrogen catalysts include amines, amine salts, amides, azo compounds and nitro compounds. Catalytic polyhydric phenols include polyhydroxy-benzenes and naphthalenes, hydroquinone and pyrogallol. Catalytic quinones include benzo- and naphtho-quinones. The catalyst containing an aliphatic group of 6 or more carbon atoms may have the group as a straight or branched chain or as a cycloaliphatic system, e.g. a saturated or unsaturated hydrocarbon, a halogeno hydrocarbon, an alcohol, a carboxylic acid, an ester or an ether. Examples describe various methods of the preparation of terphenyls.
    • 7. 发明专利
    • Thermally stable polynuclear aromatic compounds
    • GB1020444A
    • 1966-02-16
    • GB4372161
    • 1961-12-06
    • MONSANTO CHEMICALS
    • MCCALL ERNEST BRYSONBAIN PETER JAMES STRATFORD
    • C07D307/91C07D333/52C07D333/76C09K5/10
    • The invention comprises a compound in which there is substituted in an aryl nucleus at least two aromatic structures each joined to the aryl nucleus through an alkylene radical and each derived by loss of a nuclear hydrogen atom from two aromatic rings linked to each other directly or through an oxygen or sulphur atom and optionally further bridged between the two rings by an oxygen or sulphur atom or by a methylene group. The novel compounds may be made by reacting an aromatic structure containing rings linked as defined above with an aryl compound containing at least two haloalkyl substituents. Suitable aromatic structures include diphenyl ether, dibenzofuran, dibenzothiophene, benzonaphthofuran, benzonaphthothiophene, xanthen, thianthren or dibenzothioxin. Suitable aryl compounds are xylylene dichloride or dibromide. The reaction temperature may range from 50 DEG C.-300 DEG C. Specific novel compounds are a 1,3- or 1,4-bis (phenoxybenzyl) benzene, a 1,3- or 1,4-bis (dibenzothienylmethyl) benzene, a 1,3 - or 1,4 - bis-(dibenzofurylmethyl) benzene, 1,3,5-tris (o-phenoxybenzyl) benzene, 1,4-bis (m-phenoxybenzyl) - 2,5 - dichlorobenzene, 1,3 - bis-(p - phenoxybenzyl) - 5 - phenylbenzene, 3,5-bis [p(p1 - chlorophenoxy) benzyl] toluene, 1,4 - bis (41,81 - dicyclohexyldibenzofuryl - 21-methyl) benzene, 2,3-bis (41-dibenzothienylmethyl) diphenyl and 1,4-bis (3,71-dimethyldibenzothienyl-21-methyl) benzene.
    • 9. 发明专利
    • Phosphite Esters of Sulphur-Bridged Phenols and their use as Stabilisers for Rubber
    • GB1193960A
    • 1970-06-03
    • GB5694466
    • 1966-12-20
    • MONSANTO CHEMICALS
    • NEALE ALAN JEFFREYBAIN PETER JAMES STRATFORD
    • C07F9/145C08K5/526
    • 1,193,960. Phosphite esters of sulphurbridged phenols. MONSANTO CHEMICALS Ltd. 24 Nov., 1967 [20 Dec., 1966], No. 56944/66. Heading C2C. [Also in Division C3] The invention comprises (a) phosphite esters of the formula (RO) x P(OR 1 ) 3-x where x is 1 or 2 and (i) R is a 2(2 1 -hydroxyphenylthio)phenyl radical or an alkyl-substituted hydroxyphenylthiophenyl radical in which each phenyl nucleus contains two alkyl groups each having up to 8 carbon atoms, such alkyl groups being (apart from the hydroxyl group) the only nuclear substituents, and R 1 is a phenyl or alkylsubstituted phenyl group; or (ii) R is a hydroxyphenylthiophenyl radical or an alkyl-substituted hydroxyphenylthiophenyl radical containing from 1 to 4 alkyl groups each of up to 8 carbon atoms, such alkyl groups being (apart from the hydroxyl group) the only nuclear substituents and R 1 is phenyl containing from 1 to 3 substituents selected from alkyl groups of up to 4 carbon atoms and α-methylbenzyl, provided at least one substituent is α-methylbenzyl; and (b) a mixture of phosphite esters of the formula (RO) 3 P where each R represents a 2(2 1 -hydroxyphenylthio)phenyl or a 2(4 1 -hydroxyphenyl. thio)phenyl or a 4(4 1 -hydroxyphenylthio)phenyl radical. Esters of formula (b) are prepared by reacting a mixture of 2,2 1 -thiobisphenol, 4,4 1 - thiobisphenol and 2,4 1 -thiobisphenol with a phosphorus trihalide. Esters of formula (a) are prepared either by (i) reaction of a mixture of a phenol ROH and a phenol R 1 OH in appropriate molar proportions, with a phosphorus trihalide, (ii) reaction of a phenol ROH with a phosphorus ester halide of the formula X x P(OR 1 ) 3-x where X represents a halogen atom and x is 1 or 2, and (iii) a transesterification reaction in which a phosphite ester of the formula (R 1 O) 3 P is heated with an equimolar proportion of a phenol ROH until 0À85 to 1À15 molar proportions of the phenol R 1 OH have been displaced. In Example 4 a mixture of 2,2 1 -, 4,4 1 - and 2,4 1 -thiobisphenols are prepared by heating phenol with sulphur and sodium hydroxide. In Example 9 a thiophenol of the formula was obtained by heating phenol with sulphur in the presence of a catalytic amount of phosphorus pentoxide, and a phosphite ester of the formula was prepared from the thiophenol by reaction with triphenyl phosphite. In Example 13, di(2,6-dimethylphenyl)phosphorochloridite is prepared by reacting 2,6- dimethylphenol with phosphorus trichloride under nitrogen.
    • 10. 发明专利
    • Aralkyl heterocyclic compounds and their use as functional fluids
    • GB1000964A
    • 1965-08-11
    • GB2932364
    • 1961-12-01
    • MONSANTO CHEMICALS
    • MCCALL ERNEST BRYSONBAIN PETER JAMES STRATFORD
    • C07D307/77C07D307/91C07D333/76
    • A compound containing one or more aralkyl groups substituted in a structure that has two aromatic rings linked to each other directly and which are also bridged by an oxygen or sulphur atom is made by reacting a compound having two aromatic rings linked to each other directly and which are also bridged by an oxygen or sulphur atom with an aralkyl halide. The products are novel, provided that where there are two aralkyl groups, the aralkyl groups are benzyl groups. The aromatic rings linked to each other can be phenyl, diphenylyl, naphthyl or thienyl. The aralkyl group may contain a methylene, ethylene ethylidene, butylene, isobutylene or hexamethylene group. The aromatic ring may also contain substituents such as halogen, alkyl or alkoxy groups. The aralkyl halide may be a chloride or bromide. The reaction temperature is not less than 50 DEG C. and is preferably 100-250 DEG C. Suitable catalysts which may be used if desired are metal or metal salts, such as halides of the Friedel Crafts type, e.g. aluminium chloride and ferric chloride, or copper or cuprous chloride. The product may be a mixture of isomers which can be separated by chromatography or fractional crystallation. Examples describes the preparation of monobenzyl and dibenzyldibenzothiophenes, and monobenzyl and dibenzyldibenzofurans. Specific examples of new compounds are 2- or 4-benzyl-dibenzothiophene; 2,4 - or 2,8 - dibenzyldibenzothiophene; 2,8 - bis - (p-chlorobenzyl)- or 1-(41 - phenylbenzyl) - dibenzothiophene; 2-benzyl- or 3-(p-methyl-benzyl)- or 2,8-dibenzyl-dibenzofuran; 1-phenyl-2-benzyl- or 2-cyclohexyl - 8 -(31 - phenylbenzyl) - dibenzofuran; 1 - phenyl - 2 - benzyl - 8,9 - benzo - dibenzofuran; 2 - ethoxy - 8 - (a -methylbenzyl)-dibenzothiophene and 2,4,8-tris-(a -methylbenzyl) dibenzofuran.