Zhurnal Obshchei Khimii published new progress about 2382-10-7. 2382-10-7 belongs to class chlorides-buliding-blocks, and the molecular formula is C6H4Cl2N4, Recommanded Product: 2,6-Dichloro-9-methyl-9H-purine.
Ovcharova, I. M.; Golovchinskaya, E. S. published the artcile< Syntheses of purines. VII. Some transformations of 2,6-dichloro-9-methylpurine>, Recommanded Product: 2,6-Dichloro-9-methyl-9H-purine, the main research area is .
2,6-Dichloro-9-methylpurine (I) in 4 hrs. with EtONa-EtOH at 20°, then heated briefly, gave 2-chloro-6-ethoxy-9-methylpurine, m. 121-2°; refluxing 2 hrs. with EtONa-EtOH gave 79.2% 2,6-diethoxy-9-methylpurine, m. 87-9°. I and 30% aqueous EtNH2 at 20° gave 92% 2-chloro-6-ethylamino-9-methylpurine, m. 182-5°. Similarly, I and aqueous Na2S at 20° gave 82.3% 2-chloro-9-methylpurine-6-thiol (II), decomposed >300°, which with red P and HI 1 hr. at reflux gave 81% 9-methylpurine-6-thiol, decomposed >300°. I refluxed 5 hrs. in N H2SO4, then quenched in aqueous NaOH, gave 82% 2-chloro-6-hydroxy-9-methylpurine (III), decomposed on heating; the same formed from I in 2 min. in N NaOH at 95°; the product, purified through the Na salt, decomposed 260-70°; it was also formed in 44-9% yield from I and N NaOH in 1 day at room temperature; the substance formed Na salt monohydrate. II heated to 95° with 25-30% aqueous NH3 or amines 12-24 hrs. gave the following 2-amino-9-methylpurine-6-thiols (amino group shown): Me2N (IV), decomposed 273-5°; Et2N, m. 225-8°; PhCH2NH, decomposed 292-4°; EtNH, decomposed >300°; H2N, decomposed >350°. As a by-product some bis-(2-dimethylamino-9-methyl-6-purinyl) disulfide, m. 207-9°, was isolated; this with Na2S solution was reduced to IV. III heated as above with aqueous amines 10-15 hrs. gave the following 2-amino-9-methyl-6-hydroxypurines (amino group shown): Me2N, decomposed 331-3° (HCl salt decomposed 289-90°); Et2N, m. 260-2° (HCl salt decomposed 267-70°); PhCH2NH, decomposed 334-5° (HCl salt decomposed 245-9°); EtNH, decomposed 356-8° (HCl salt decomposed 288-9°); H2N, decomposed 350° (HCl salt decomposed 300-2°). These refluxed in excess POCl3, concentrated in vacuo, and quenched in ice, then adjusted to pH 7, gave 2-amino-6-chloro-9-methylpurines: Me2N, m. 150.5-2.5°; Et2N, m. 86-8°; PhCH2NH, m. 142-3.5°; EtNH, m. 187-9°; H2N, decomposed 262-3°. These refluxed with 2 moles SC(NH2)2 in absolute EtOH gave the same thiols as shown above. These with MeI in N NaOH at 20° gave the following 6-methylthio-9-methylpurines (2-substituent shown): Cl, m. 161-2.5°; H, m. 169-70°; Me2N, m. 152-3.5°; Et2N, m. 105.5-6.5°; PhCH2NH, m. 131.5-3.5°; EtNH, m. 143.5-5.5°; H2N, m. 190°. The yields were 78-86%. Ethylenimine and the appropriate chloropurine gave in 18 hrs. at room temperature 33.8% 2-amino-6-(N-aziridinyl)-9-methylpurine, m. 181-3°; similarly was prepared at -15°, then at room temperature in Et2O, some 2-chloro-6-(N-aziridinyl)-9-methylpurine, m. 130-2 °.
Zhurnal Obshchei Khimii published new progress about 2382-10-7. 2382-10-7 belongs to class chlorides-buliding-blocks, and the molecular formula is C6H4Cl2N4, Recommanded Product: 2,6-Dichloro-9-methyl-9H-purine.
Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics