天堂网亚洲,天天操天天搞,91视频高清,菠萝蜜视频在线观看入口,美女视频性感美女视频,95丝袜美女视频国产,超高清美女视频图片

Welcome to chemicalbook!
Chinese English Japanese Germany Korea
400-158-6606
Try our best to find the right business for you.
Do not miss inquiry messages Please log in to view all inquiry messages.

Welcome back!

ChemicalBook CAS DataBase List DI-N-PROPYL OXALATE
615-98-5

DI-N-PROPYL OXALATE synthesis

10synthesis methods
Dipropyl oxalate is produced by condensation of orrho-Hydroxybenzylalcohol with Di-iso-propylketone.
-

Yield:615-98-5 85%

Reaction Conditions:

at 150; for 48 h;

Steps:

11 Example 11

15 g of [ChCl] 2 [CoCl2.6H2O] eutectic solvent and 18.00 g(0.20 mol) of oxalic acid were mixed with 60.07 g(1.00 mol)Propanol into the reaction flask,Stirring,The control temperature was 150 ° C,Reaction for 48 hours,Take 1 μL sample into the sample,The yield of dipropyl oxalate in the reactants wasdetermined by gas chromatography,The column was HP5MS.The specific test conditions are: chamber temperature 140 ,Gasification chamber 320 ° C,Detection chamber 320 .The reaction selectivity was determined by a FinniganTraceDSQ GC-MS,The column used was HP5MS.The conversion of dipropyl oxalate underthe above reaction conditions was 85%Selectivity is 100%.The reaction solution was allowed to stand,The upper organic phase obtained by the separation was theesterification reaction product of dipropyl oxalate.The low-temperature eutectic solvent of the lower layer canbe reused after simple water removal.

References:

CN105218360,2016,A Location in patent:Paragraph 0048; 0049

DI-N-PROPYL OXALATE Related Search: