3,5-Di(hydroxyorganyl)pyrazoles

The reaction of primary-tertiary and secondary-tertiary aliphatic diacetylenic -glycols with hydrazine hydrate leads to the formation of isomeric 3,5-di(hydroxyalkyl)pyrazoles in which the pyrazole ring is present both in the and in the position to the tertiary carbon atom to which the hydroxy group is attached. The structure of the hydrocarbon substituents connected with this atom substantially affects the ratio of the and isomers. The addition of hydrazine hydrate to aliphatic glycols and their monoethers is accompanied by the formation of individual -(hydroxyalkyl)pyrazoles.Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 11, pp. 1538–1541, November, 1973.     

Molecular structure of (3,5-diallylisocyanuratomethyl)bis(chloromethyl)phosphine oxide. Synthesis of (3,5-diallylisocyanuratomethyl)phosphine sulfides

X-Ray study of the (3,5-diallylisocyanuratomethyl)bis(chloromethyl)phosphine oxide showed that the phosphorylmethyl group is bonded to the nitrogen atom of the cycle. Reaction of the tris(chloromethyl)phosphine sulfide with sodium diallylisocyanurate gave (3,5-diallylisocyanuratomethyl)bis(chloromethyl)phosphine sulfide, and treatment of the tris(3,5-diallylisocyanuratomethyl)phosphine oxide with phosphorus pentasulfide gave a tris(3,5-diallylisocyanuratomethyl)bis(chloromethyl)phosphine sulfide.Translated fromIzvestiya Akademii Nauk. Seriya Khimicheskaya, No. 8, pp. 1446–1448, August, 1993.     

Synthesis of 3,5-Bis(hydroxymethyl)adamantan-1-ols and 3,5-Bis(nitrooxymethyl)adamantan-1-yl Nitrates

Russian Journal of Organic Chemistry - A convenient method has been developed for the synthesis of 3,5-bis(hydroxymethyl)adamantan-1-ols via successive nitroxylation of...     

2,4,6-tris(methylsulfonyl)-3,5-dichloropyridine

The reactions of 2,6-bis(methylthio)-3,4,5-trichloropyridine and its N-oxide with sodium hydrosulfide were studied. A method for the synthesis of 2,4,6-tris(methylsulfonyl)-3,5-dichloropyridine was developed.Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 3. pp. 369–371, March, 1976.     

3,5-diCl-PADAP光度法测定微量重铬酸根的研究

铬的测定对生命科学及工农业等领域具有重要意义[1]。铬的测定有吸光光度法、原子吸收光谱法、ICP-AES法等[2-5]。本文依据3,5-d iC l-PADAP在酸性介质中质子化后与Cr2O72-形成二元离子缔合物的性质,建立了吸光光度法测定微量Cr2O72-的方法,用于环境水样和茶叶中铬的测定,结果满意。1试验部分1·1仪器和试剂722型分光光度计;TU-1901双光束紫外可见分光光度计;K2Cr2O7标准溶液:1·00×10-3mol·L-1;3,5-d iC l-PADAP乙醇溶液:1·00×10-3mol·L-1。试剂均为分析纯,水为二次蒸馏水。1·2实验方法移取1·00×10-3mol·L-1 3,5-d i…