54079-84-4Relevant academic research and scientific papers
Tungsten hexachloride (WCl6) in the presence of dimethylsulfoxide promoted facile and efficient one-pot ring expansion-chlorination reactions of 1,3-dithiolanes and 1,3-dithianes
Firouzabadi, Habib,Iranpoor, Nasser,Karimi, Babak
, p. 413 - 414 (1999)
Tungsten hexachloride (WCl6) in the presence of DMSO could be efficiently used for the conversion of 1,3-dithiolanes and 1,3-dithianes to their corresponding chlorinated derivatives of dihydro-1,4-dithiin and dihydro-1,4-dithiepine in high yiel
Molybdenum pentachloride (MOCL5) promotes efficient ring-expansion and ring-expansion-chlorination of 1,3-Dithiolanes and 1,3-dithianes in the presence of DMSO. Part 3
Firouzabadi, Habib,Karimi, Babak
, p. 199 - 206 (2001)
Ring-expansion and ring-expansion-chlorination of 1,3-dithiolanes and dithianes conducted in the presence of MoCl5 and DMSO are described.
Facile ring-expansion substitution reactions of 1,3-dithiolanes and 1,3-dithianes initiated by electrophilic reagents to produce monohalo-, -cyano-, -azido- and -thiocyanato-1,4-dithiins and -1,4-dithiepins
Firouzabadi, Habib,Iranpoor, Nasser,Garzan, Atefeh,Shaterian, Hamid Reza,Ebrahimzadeh, Farzaneh
, p. 416 - 428 (2007/10/03)
Mild and convenient methods for the high yielding ring-expansion substitution reactions of 1,3-dithiolanes and 1,3-dithianes generated from different aryl methyl ketones using different electrophilic reagents are reported. In this study, facile preparatio
Reactions of silica chloride (SiO2Cl)/DMSO, a heterogeneous system for the facile regeneration of carbonyl compounds from thioacetals and ring-expansion annelation of cyclic thioacetals
Firouzabadi, Habib,Iranpoor, Nasser,Hazarkhani, Hassan,Karimi, Babak
, p. 2572 - 2576 (2007/10/03)
Silica chloride (SiO2Cl)/DMSO, as a heterogeneous system, has been efficiently used for deprotection of thioacetals into aldehydes in dry CH2Cl2 at room temperature. Thioketals without enolizable hydrogens adjacent to a sulfur atom are converted easily to the corresponding ketones in high yields under similar reaction conditions. However, thioketals with enolizable methyl and methylene groups undergo ring-expansion reactions to afford 1,4-dithiepins and 1,4-dithiins in dry CH2Cl2 at room temperature in good yields.
