Organic Process Research and Development p. 2591 - 2603 (2020)
Update date:2022-08-15
Topics:
Landart, Mélissa
Lemaire, Marc
Métay, Estelle
The direct synthesis of dipentaerythritol (DPE) from pentaerythritol (PE) was studied under acidic conditions. After optimization of the reaction parameters in a batch reactor, DPE was obtained with 50% selectivity when 50% PE was converted. This process, using PE in suspension in sulfolane (PE/sulfolane ratio = 2333 g/L) at 175 °C for 60 min, required a low amount of sulfuric acid (0.5 mol %). The optimized conditions were transposed to a 140 grams scale process. Finally, DPE was isolated with 16% yield (72% gas chromatography, GC purity) for 28% conversion of PE that corresponds to 57% DPE selectivity.
View MoreContact:852-27701081
Address:Room 2509, New Tech Plaza, 34 Tai Yau St., San Po Kong, HK
Wuhan Hanye Chemical New Material Co.,Ltd
Contact:+86-27-85308141
Address:LiuDian, Panlongcheng Economic Development Zone, HuangPi district, Wuhan, Hubei 430311 P.R.China
Ceresking Ecology & Technology co.,ltd
Contact:86 22 66218397
Address:Room 1613, Zheshang Mansion, No. 1988, Yingbin Avenue, Binhai New District, Tianjin,China.
Contact:410-273-7300; 800-221-3953
Address:4609 Richlynn Dr., PO Box 369, Belcamp, MD, 21017-0369, USA
Refine Chemicals Science & Technology Technology Developing Co., Ltd.
Contact:+86-22-87899130
Address:No.12,west keyan road,Tianjin City
Doi:10.1007/s13738-016-1018-4
(2017)Doi:10.1016/j.ejmech.2007.02.015
(2007)Doi:10.1039/d0sc00465k
(2020)Doi:10.1002/aoc.4854
(2019)Doi:10.1002/anie.201710053
()Doi:10.1080/00397910802162959
(2008)