Alpha-Furfuryl Chloride and Its Derivatives. Ii

Abstract

The recent preparation and isolation of -furfuryl chloride1 has greatly simplified the synthesis of -furfuryl compounds and it is now possible, by using this reagent, to prepare compounds which were in many cases previously obtainable only by more or less indirect methods which usually started with furfural and involved several steps in the procedure. By the use of -furfuryl chloride, which contains a highly reactive chlorine atom, we have prepared the following new compounds, which are listed in Table I, together with their physical constants. Table I New Furyl Derivatives No. Name B. p., °C. Press., mm.

Antioxidative activity and ameliorative effects of memory impairment of sulfur-containing compounds inAlliumspecies

“…Dimethyl disulfide (7), diethyl disulfide (8), di-n-propyl disulfide (9), diallyl disulfide (10), diisopropyl disulfide (11), di-n-butyl disulfide (12), dimethyl trisulfide (13), diethyl trisulfide (14), di-n-propyl trisulfide (15), diallyl trisulfide (16), diisopropyl trisulfide (17), and di-n-butyl trisulfide (18) were synthesized according to a modified method of Kirner and Richter [11]. Vinyldithiins, 3,4-dihydro-3-vinyl-1,2-dithiin (19), and 2-vinyl-4H-1,3-dithiin (20) were synthesized and purified according to the method of Beslin [22]. The purified compounds were characterized by the interpretation of 1 H NMR (400 MHz), 13 C NMR (100 MHz), mass, and IR spectral data.…”

Photochemistry and radiation chemistry of sulfur-containing amino acids. New reaction of the 1-propenylthiyl radicals

“…1 -Propene-1-thiol. This compound was prepared by the synthetic procedure of Brandsma:23 bp 63-70°; yield 21%; mass spectrum m/e (rel intensity) 74 (M+, 82.9), 59 (18.6), 47 (14.6), 45 (71.4) , 41 (100), and 39 (54.3).…”

“…2-Methyl-2-pentenal. This compound was prepared by the synthetic procedure of Faquín:43 bp 137-138°; yield 32%; mass spectrum m/e (rel intensity) 98 (M+, 68.8), 83 (25.5), 69 (50.8), 55 (52.0) , 41 (100), and 39 (38.5).…”

Antioxidative activity of sulfur‐containing compounds in Allium species for human LDL oxidation in vitro

“…Dimethyl disulfide, diethyl disulfide, di-n-propyl disulfide, diallyl disulfide, diisopropyl disulfide, di-n-butyl disulfide, dimethyl trisulfide, diethyl trisulfide, di-n-propyl trisulfide, diallyl trisulfide, diisopropyl trisulfide, and di-n-butyl trisulfide were synthesized according to a modified method of Kirner and Richter. [11] Vinyldithiins, 3,4-dihydro-3-vinyl-1,2-dithiin, and 2-vinyl-4H-1,3-dithiin were synthesized and purified according to the method of Beslin [12]. The purified compounds were characterized by the interpretation of 1 H NMR (400 MHz), 13 C NMR (100 MHz), mass, and IR spectral data.…”