Alkyl Sulfites—Cyclohexyl Sulfite

Abstract

Vol. 66 by the decarboxylation of oleanolic acid. Oxidaprepared by the decarboxylation and dehydration of norechinocystenol-A gives the ketone notegenation of oleanolic acid. chinocystenone-A, which is different from oleanone Stanford Univ., California

Organic Sulfites.

“…The cyclic derivatives of erythrol (20) and l,4-dihydroxy-2butene (187) have been obtained in high yields. The method was successfully applied for preparing dicyclohexyl sulfite (222), -which was otherwise not always easily secured (50,51,134,238). In the patent literature preparations of cyclic sulfites have been described from 1,2-epoxides by a reaction with sulfur dioxide (71,198).…”

Magnetic Susceptibilities of some Compounds of Sulfur

“…Dimethyl Suljite A sample from the Columbia Chemical Company was fractionally distilled, first under nitrogen and then under vacuum, to give a product boiling at 126 "C (7,8).…”

Sulfites

“…chloride can be minimized by the following techniques : (a) passage of an inert gas through the mixture [7, 8a, b], (b) use of reduced pressure to remove hydro gen chloride [9], (c) use of a solvent in which hydrogen chloride is insoluble (CH 2 C1 2 , CHC1 3 , CCI4, C 6 H 5 C1, and o-C 6 H 4 Cl 2 ) [10], or (d) use of a tertiary amine (triethylamine, pyridine, or quinoline) as a hydrogen chloride scavenger [11]. Gerrard [11] had shown earlier that the slow addition of 0.5 mole of thionyl chloride to a mixture of pyridine (1.0 mole) and hydroxy compounds («-butyl, H-amyl, or ethyl lactate-0.1 mole) gives pyridine hydrochloride and good yields of the sulfite (see Eq.…”

“…For example, diphenylmethanol gives the chloride even at -78°C. Secondary alkyl sulfites are produced if the formed hydrogen chloride is removed by carrying out the reaction at reduced pressure (aspirator) [9]. The further addition of thionyl chloride converted the sulfite to the chlorosulfinate (see Eq.…”