555,865. Sulphonamido pyrimidines. AMERICAN CYANAMID CO. March 8, 1941, Nos. 3174 and 3175. Convention dates, March 1, 1940 and Oct. 15, 1940. Samples furnished. [Class 2 (iii)] p-Substituted benzene-sulphonamido-pyrimidenes are made by reacting a benzene-sulphonyl halide, e.g. a chloride substituted in the para position by an amino group or a group convertible thereto by hydrolysis, reduction or by reaction with ammonia or an amine such as an acylamino, nitro, halogen or azo group, with an amino-pyrimidine. The products are of the general formula where R is a halogen, nitro, azo, amino or substituted amino group, e.g. alkylamino, arylamino, aralkylamino, acylamino or monoaldose amino, X is H, an alkyl group or a metal, Py is a pyrimidine substituted or unsubstituted and n is a small integer. The mono-aldose amino compounds are'made from the corresponding amino compounds by reaction with a mono aldose sugar such as galactose or glucose preferably in a solvent such as ethanol. Free hydrogen halide obtained during the reaction with a sulphonyl halide is removed by effecting the reaction in a basic medium, e.g. aqueous sodium hydroxide, triethylamine and pyridine and solvents, e.g. dioxane, acetone and benzene are specified. Alkali metal or heavy metal, e.g. gold, lead, copper and iron, salts of the products are also described. Examples describe the preparation of the following compounds by the above methods (1) 5-(N4- acetylsulphanilamido) - 2, 4 - dihydroxy-, (2) 5 - (sulphanilamido) - 2, 4 - dihydroxy-, (3) 5 - (p - nitrobenzene sulphonamido) - 2, 4 - dihydroxy-, (4) 5 - (N4 -acetylsulphanil - - amido)-, (5) 5 - (sulphanilamido)-, (6) 4 - (p - nitrobenzenesulphonamido)-, (7) and (9) 4 - (sulphanilamido)-, (8) 4 - (N4 - acetyl - sulphanilamido)-, (10) 2 - (p - nitrobenzene - sulphonamido)-, (11) and (13) 2 - (sulphanil - amido)-, (12) 2 - (N4 - acetylsulphanilamido) -, (14) 4 - p - nitrobenzenesulphonamido 2 - methoxy-, (15) 4 - sulphanilamido - 2 - methoxy-, (16) 2 - (p - nitrobenzene - sulphon - amido) 4 - methoxy-, (17) 2 - sulphanilamido- 4 - methoxy-, (18) 2 - (p - nitrobenzene - sulphonamido) - 4, 6 - dimethyl-, (19) 2 - sulphanlamido - 4, 6 - dimethyl-, (20) 2 - N1 - methyl - sulphanilamido-, (21) 4 - p - chloro - benzene - sulphamido-, (this pyrimidine may be reacted with ammonia or amines, e.g. methylamine, aniline or benzyl amine to yield the corresponding substituted 4-N4 pyrimidine), (22) azobenzene - p -, p1 - (di - 2 - sulphon - amido)-, (23) 5 - (N4 - acetylsulphanilamido) - 2 - acetylamino-, (24) 5 - sulphanilamido - 2 - amino, (25) 5 - (p - nitrobenzenesulphonamido) - 2 - methoxy-, (26) 5 - sulphanilamido - 2. - methoxy-, (27) 2 - (N4 - acetylsulphanilamido) - 4 - ethoxy,- (28) 2 - sulphanilamido - 4 - ethoxy, (29) 2, 5 - di (p - nitrobenzene - sulphonamido)-, (30) 2, 5 - disulphanilamido-, (31) 2 - (p - nitrobenzene - sulphonamido) - 5 - chloro-, (32) 2 - sulphanilamido - 5 - chloro-, (33) sodium salt of 2 - sulphanilamido-, (34) copper salt of 2 - sulphanilamido-, (35) the glucose derivative of 2-sulphanilamido- and (36) 2-(N4-benzylsulphanilamido)-pyrimidine. Examples (35) and (36) relate to two typical samples which have been furnished. The Specification as open to inspection under Sect. 91 states that in some cases the products may also be made by reacting a halogen substituted pyrimidine with an N4-acylsulphanilamide in the presence of an alkali with subsequent hydrolysis of the acyl group. In examples (23) N4-acetylsulphanilamide is treated with 2-chloro-4, 6-dimethylpyrimidine in the presence of potassium carbonate and copper powder to yield 2-N4-acetylsulphanilamido-4, 6-dimethyl pyrimidine which is hydrolysed to the free amine, (24) 2-sulphanilamidopyrimidine is diazotized and coupled with 7-acetylamino-1-hydroxynaphthalene-3, 6-disulphonic acid to yield 41-(N-(2-pyrimidyl) sulphonamido) - 2 - azo - 7 - acetylamino - 1 - hydroxynaphthalene - 3, 6 - disulphonic acid and in (29) 2-(N4-acetylsulphanilamido)-4- methyl - pyrimidine and (30) 2 - sulphanil - amido - 4 - methylpyrimidine are made by methods described above. This subjectmatter does not appear in the Specification as accepted.
555,865. 磺胺基嘧啶。美国赛诺美公司。1941年3月8日,编号3174和3175。公约日期,1940年3月1日和1940年10月15日。提供样品。[2类(iii)] 通过将苯磺酰卤,例如对位被氨基或可通过水解、还原或与氨或胺(例如酰胺基、硝基、卤素或偶氮基)反应转化的氯代物质取代的氯代物质与氨基嘧啶反应来制备对位取代的苯磺酰胺基嘧啶。所得产物具有以下一般式,其中R是卤素、硝基、偶氮基、氨基或取代氨基,例如烷基氨基、芳基氨基、芳基烷氨基、酰胺基或单糖氨基;X是H、烷基或金属;Py是取代或未取代的嘧啶,n是小整数。单糖氨基化合物是通过与单糖氨基化合物反应制备的,例如半乳糖或葡萄糖,最好在乙醇等溶剂中。在与磺酰卤反应中产生的游离氢卤素通过在碱性介质中进行反应(例如水合氢氧化钠、三乙胺和吡啶)和指定的溶剂(例如二噁烷、丙酮和苯)中去除。还描述了产品的碱金属或重金属(例如金、铅、铜和铁)盐。示例描述了通过上述方法制备以下化合物的过程(1)5-(N4-乙酰磺胺基)-2,4-二羟基-,(2)5-(磺胺基)-2,4-二羟基-,(3)5-(对硝基苯磺胺基)-2,4-二羟基-,(4)5-(N4-乙酰磺胺基-,(5)5-(磺胺基)-,(6)4-(对硝基苯磺胺基)-,(7)和(9)4-(磺胺基)-,(8)4-(N4-乙酰磺胺基)-,(10)2-(对硝基苯磺胺基)-,(11)和(13)2-(磺胺基)-,(12)2-(N4-乙酰磺胺基)-,(14)4-对硝基苯磺胺基2-甲氧基-,(15)4-磺胺基-2-甲氧基-,(16)2-(对硝基苯磺胺基)4-甲氧基-,(17)2-磺胺基-4-甲氧基-,(18)2-(对硝基苯磺胺基)4,6-二甲基-,(19)2-磺胺基-4,6-二甲基-,(20)2-N1-甲基-磺胺基-,(21)4-对氯苯磺胺基-,(此嘧啶可以与氨或胺(例如甲胺、苯胺或苄胺)反应,生成相应的取代4-N4嘧啶),(22)偶氮苯-对-,对1-(二-2-磺胺基)-,(23)5-(N4-乙酰磺胺基)-2-乙酰氨基-,(24)5-磺胺基-2-氨基,(25)5-(对硝基苯磺胺基)-2-甲氧基-,(26)5-磺胺基-2-甲氧基-,(27)2-(N4-乙酰磺胺基)-4-乙氧基-,(28)2-磺胺基-4-乙氧基,(29)2,5-二(对硝基苯磺胺基)-,(30)2,5-二磺胺基-,(31)2-(对硝基苯磺胺基)-5-氯-,(32)2-磺胺基-5-氯-,(33)2-磺胺基-的钠盐,(34)2-磺胺基-的铜盐,(35)2-磺胺基-的葡萄糖衍生物和(36)2-(N4-苄基磺胺基)-嘧啶。示例(35)和(36)涉及已提供的两种典型样品。根据第91条款,规范可供检查,有时也可通过在碱性条件下与卤代嘧啶反应,然后水解酰基来制备产品。在示例(23)中,N4-乙酰磺胺基与2-氯-4,6-二甲基嘧啶在碳酸钾和铜粉的存在下反应,产生2-N4-乙酰磺胺基-4,6-二甲基嘧啶,然后水解为自由胺,(24)2-磺胺基嘧啶重氮化,并与7-乙酰氨基-1-羟基萘-3,6-二磺酸偶联,产生41-(N-(2-嘧啶基)磺胺基)-2-偶氮-7-乙酰氨基-1-羟基萘-3,6-二磺酸,在(29)中,通过上述方法制备了2-(N4-乙酰磺胺基)-4-甲基-嘧啶和(30)2-磺胺基-4-甲基嘧啶。这一主题未在已接受的规范中出现。