83810-18-8Relevant academic research and scientific papers
Chemoselective dithioacetalization of aldehydes using silica sulfuric acid as a reusable catalyst
Pore,Desai, Uday V.,Mane,Wadgaonkar
, p. 1291 - 1295 (2007/10/03)
Silica sulfuric acid has been found to be an efficient and reusable catalyst for chemoselective dithioacetalization of aldehydes over ketones, in excellent yields.
Chemoselective thioacetalization with odorless 2-(1,3-dithian-2-ylidene)-3- oxobutanoic acid as a 1,3-propanedithiol equivalent
Yu, Haifeng,Dong, Dewen,Ouyang, Yan,Liu, Qun
, p. 1741 - 1745 (2007/10/03)
Odorless 2-(1,3-dithian-2-ylidene)-3-oxobutanoic acid (1c) was prepared and investigated in the thioacetalization of carbonyl compounds as a 1,3-propanedithiol equivalent. The results showed that the thioacetalization of various carbonyl compounds 2 with 1c proceeded smoothly and afforded the corresponding dithioacetals 3 in high yields (up to 99%) in the presence of acetyl chloride at room or reflux temperatures. Moreover, the thioacetalization exhibited high chemoselectivity between aldehydes and ketones.
α,α-diacetyl cyclic ketene dithioacetals: Odorless and efficient dithiol equivalents in thioacetalization reactions
Yu, Haifeng,Liu, Qun,Yin, Yanbing,Fang, Qunxin,Zhang, Jingping,Dong, Dewen
, p. 999 - 1002 (2007/10/03)
Two novel, non-thiolic, odorless dithiol equivalents, α,α- diacetyl cyclic ketene dithioacetals 2a and 2b, had been developed. A range of carbonyl compounds 3 were converted into corresponding dithioacetals, dithianes 4 and dithiolanes 5, in high yields (up to 99%) in the presence of 2a or 2b. Moreover, 2a and 2b show high chemoselectivity between aldehyde and ketone in thioacetalization.
The First Nonthiolic, Odorless 1,3-Propanedithiol Equivalent and Its Application in Thioacetalization
Liu, Qun,Che, Guangbo,Yu, Haifeng,Liu, Yingchun,Zhang, Jingping,Zhang, Qian,Dong, Dewen
, p. 9148 - 9150 (2007/10/03)
2-[2-Chloro-1-(1-chlorovinyl)allylidene]-1,3-dithiane 1 was synthesized by the chlorination of 3-(1,3)-dithianylidenepentane-2,4-dione 2 using the Vilsmeier-Haack reagent in 99% yield. As a novel nonthiolic, odorless 1,3-propane-dithiol equivalent, 1 was investigated in the thioacetalization reaction. Various types of aldehydes and ketones 3 were converted to the corresponding dithianes 4 in the presence of 1 in high yields (79-97%). Moreover, 1 exhibited obvious chemoselectivity between aldehyde and ketone in this thioacetalization reaction. A mechanism for this thioacetalization reaction is proposed.
