Schiff base derivative composition used for fingerprint development, comprises Schiff base derivatives synthesized from pyrene-1-carboxaldehyde and diamine compound, e.g., ethylene diamine, 1,6-hexadiamine, m- or p-phenylene diamine, and carrier having silica gel, calcium sulfate or talcum powder
	RAO G K; BEHERA K K; BUMBRAH G S; GROVER A; YADAV N
	2023-09-11
专利权人	UNIV AMITY HARYANA (UYAM-Non-standard)
申请日期	2023-09-11
专利号	IN202311060993-A
成果简介	NOVELTY - Schiff base derivative composition comprises: 0.05-0.20 g Schiff base derivatives synthesized from 0.460 g pyrene-1-carboxaldehyde and a diamine compound selected from ethylene diamine, 1,6-hexadiamine, m-phenylene diamine, and p-phenylene diamine; carrier comprising 0.1-0.15 g silica gel, 0.50-1 g calcium sulfate, and 0.15-0.25 g talcum powder. USE - Schiff base derivative composition used for fingerprint development (claimed), on dry, porous and nonporous surfaces, e.g., aluminum foil, bakelite sheet, glass slide, front side of compact-disc and white paper sheet; and also used for both at the scene of crime or in the laboratory. ADVANTAGE - The composition enables to develop clear, sharp and good quality fingerprints on the surfaces; and is simple and cost-effective. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for preparing a Schiff base derivative composition for fingerprint development, which involves: (a) reacting pyrene-1-carboxaldehyde with a diamine selected from ethylene diamine, 1,6- hexadiamine, m-phenylene diamine, and p-phenylene diamine in a molar ratio of 2:1; (b) dissolving 0.460 g pyrene-1-carboxaldehyde in a solvent selected from ethanol or toluene and stirred for 5 minutes; (c) adding dropwise a solution of the diamine, either 0.065 g ethylene diamine, 0.116 g 1,6-hexadiamine, 0.108 g m-phenylene diamine, or 0.108 g p-phenylene diamine, in the same solvent to the pyrene-1-carboxaldehyde solution; (d) stirring the reaction mixture at 60℃ for 6 hours, for ethylene diamine or 1,6-hexadiamine; conducting the reaction in a Dean-Stark apparatus at 100℃ for 12 hours, for m-phenylene diamine or p-phenylene diamine; (e) monitoring the progress of the reaction using thin layer chromatography (TLC); (f) upon completion, cooling the reaction mixture (for reactions involving ethanol) or filtering (for reactions involving toluene) to obtain a precipitate; (g) filtering the precipitate, washing with cold ethanol, and drying in a hot air oven at 60℃ to yield ligands L2, L3, L4, and L5; (h) mixing 0.2 g ligands with 0.15 g silica gel, 0.5 g calcium sulfate and 0.15 g talcum powder in 10 ml chloroform; (i) stirring for 30 minutes and drying at room temperature (37℃) for 5 days; and (j) grinding the dried mass with mortar and pestle to obtain a fine powder.
IPC 分类号	A61K-031/403 ; A61K-031/5375 ; A61P-039/06 ; C07D-209/88 ; C07D-265/32 ; C07D-295/135
国家	印度
专业领域	医药卫生
语种	英语
成果类型	专利
文献类型	科技成果
条目标识符	http://119.78.100.226:8889/handle/3KE4DYBR/20437
专题	中国科学院新疆生态与地理研究所
作者单位	UNIV AMITY HARYANA (UYAM-Non-standard)
推荐引用方式 GB/T 7714	RAO G K,BEHERA K K,BUMBRAH G S,et al. Schiff base derivative composition used for fingerprint development, comprises Schiff base derivatives synthesized from pyrene-1-carboxaldehyde and diamine compound, e.g., ethylene diamine, 1,6-hexadiamine, m- or p-phenylene diamine, and carrier having silica gel, calcium sulfate or talcum powder. IN202311060993-A[P]. 2023.

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