Preparing fluorinated ester compound, involves halogenating difluoroacetone to give fluorinated compound, converting fluorinated compound to fluorinated ester compound, and reducing fluorinated ester compound using reducing agent such as triphenylphosphine or chlorodiphenylphosphine
	PRABHU B; MAHESHWARAN C; HANUMAN G; RADHA K; BHUPENDER S; ANURAG J
	2023-07-24
专利权人	SRF LTD (SRFS-Non-standard)
申请日期	2023-07-24
专利号	IN202313049710-A
成果简介	NOVELTY - The process for preparation of a fluorinated ester compound (I), involves halogenating difluoroacetone to give a fluorinated compound (IV); converting the compound (IV) to a fluorinated ester compound (V); and reducing the compound (V) to compound (I), where the improvement lies in the preparation of difluoroacetone by decomposition of alkyl difluoroacetoacetate in presence of a resin. USE - Process for preparation of a fluorinated ester compound (I). ADVANTAGE - The method provides simple, cost-effective and industrially applicable processes for preparation of difluoroacetone. The acid resin used as catalyst are strongly acidic, cation exchanger and can be recycled multiple times without any reprocessing which makes the process more economically viable. The effluent discharge of acidic resin is minimum in the environment due to its high recyclability. DETAILED DESCRIPTION - The process for preparation of a fluorinated ester compound of formula (CH(F)2-CH2-C(=O)-OR) (I), involves halogenating difluoroacetone to give a fluorinated compound of formula (CH(F)2-C(=O)-CH(X)2) (IV); converting the compound (IV) to a fluorinated ester compound of formula (CH(F)2-CH(OH)-C(=O)-OR1) (V); and reducing the compound (V) to compound (I), where the improvement lies in the preparation of difluoroacetone by decomposition of alkyl difluoroacetoacetate in presence of a resin. (R = 1-6C-alkyl; X = halo such as Cl, Br, or I; and R1= H or 1-6C-alkyl).
IPC 分类号	C07C-059/125 ; C07C-059/135 ; C07C-069/63 ; C07C-069/708 ; C07C-069/712
国家	印度
专业领域	化学化工
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/21151
专题	中国科学院新疆生态与地理研究所
作者单位	SRF LTD (SRFS-Non-standard)
推荐引用方式 GB/T 7714	PRABHU B,MAHESHWARAN C,HANUMAN G,et al. Preparing fluorinated ester compound, involves halogenating difluoroacetone to give fluorinated compound, converting fluorinated compound to fluorinated ester compound, and reducing fluorinated ester compound using reducing agent such as triphenylphosphine or chlorodiphenylphosphine. IN202313049710-A[P]. 2023.

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