53408-89-2Relevant academic research and scientific papers
Tribological study of hydrolytically stable S-containing alkyl phenylboric esters as lubricant additives
Li, Zhipeng,Li, Yilin,Zhang, Yawen,Ren, Tianhui,Zhao, Yidong
, p. 25118 - 25126 (2014)
Three novel S-containing alkyl phenylboric esters, i.e., DSPB, TSPB and TBPB, were prepared and characterized. Compared with common boric esters, these three additives exhibit significant hydrolytic stability, which can be attributed to their specific mol
NaOH-promoted thiolysis of oxiranes using 2-[bis(alkylthio)methylene]-3- oxo-N-o-tolylbutanamides as odorless thiol equivalents
Yu, Haifeng,Dong, Dewen,Ouyang, Yan,Wang, Yan,Liu, Qun
, p. 151 - 155 (2008/03/13)
A convenient and efficient protocol for the thiolysis of oxiranes using 2-[bis(alkylthio)methylene]-3-oxo-N-o-tolylbutanamides as thiol equivalents has been developed. Promoted by sodium hydroxide (NaOH) in ethanol at room temperature, the cleavage commences and the generated thiolate anions undergo nucleophilic addition in situ. β-Hydroxy Sulfides were obtained in high yields along with good β-regioselectivity, and trans β-hydroxy Sulfides were also isolated. The thiolysis of one α,β-epoxyketone product with the thiol equivalents was accomplished to afford the corresponding α-carbonyl sulfides in excellent yields. In all the cases, 3-oxo-N-o-tolylbutanamide, the precursor of the thiol equivalents, could be recovered in the novel thiolysis process as a byproduct in good yield. Georg Thieme Verlag Stuttgart.
The Use of Proton-exchanged X-Type Zeolite in Catalysing Ring-opening Reactions of 2-Substituted Epoxides with Nucleophiles and its Effect on Regioselectivity
Takeuchi, Hiroshi,Kitajima, Kunio,Yamamoto, Yasuhiro,Mizuno, Kiyokazu
, p. 199 - 203 (2007/10/02)
The use of proton-exchanged X-type zeolite in catalysing ring-opening reactions of 2-alkyl substituted epoxides with nucleophiles gives a high regioselectivity and functional-selective catalysis giving allylic products from allylic nucleophiles.Mechanistic aspects are discussed.
KINETICS AND MECHANISM OF THE REACTION BETWEEN ALKYLOXIRANES AND ALKANETHIOLS IN THE PRESENCE OF BASIC CATALYSTS
Chlebicki, Jan,Cichacz, Zbigniew
, p. 139 - 147 (2007/10/02)
Rate constants and activation parameters have been determined for the reaction of methyloxirane and ethyloxirane with alkanethiols.The mechanism of this reaction in the resence of basic catalysts is proposed, and its kinetic equation is presented.
REACTIONS OF OXIRANES WITH ALKYLTHIOLS
Chlebicki, Jan,Cichacz, Zbigniew
, p. 485 - 494 (2007/10/02)
Alkyl-2-hydroxyalkyl sulfides and their oxyalkylenated adducts were obtained in the reaction of oxirane or methyloxirane with C4-C12 alkylthiols in presence of basic or acidic catalysts.The sulfides were further oxidized to sulfoxides and sulfones.
Organotin-containing composition for the stabilization of polymers of vinyl chloride
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, (2008/06/13)
An organotin-containing composition for the stabilization of polymers or copolymers of vinyl chloride in which there is incorporated a stabilizing amount of an organotin compound containing at least two tin atoms and which is a mercapto, hydroxy or alkoxy substituted ester of a mercapto acid substituted organotin mercapto acid diester.
