| 摘要 |
<p>An alpha -formyl sulfide is prepared by a process which comprises reacting in an aqueous medium an alpha -haloaldehyde of the formula WHEREIN R' and R'' independently are hydrogen, hydrocarbon radicals of 1 to 18 carbon atoms selected from the group consisting of alkyl, cycloalkyl, alkenyl, cycloalkenyl and aryl, or substituted hydrocarbon radicals of the above group, and X is a halogen selected from the group consisting of chlorine, bromine, and iodine, with a thiol salt of the formula R'''SM, wherein R''' is a hydrocarbon radical of 1 to 18 carbon atoms selected from the group consisting of alkyl, cycloalkyl, alkenyl, cycloalkenyl and aryl or a substituted hydrocarbon radical of the above group; and M is an alkali or alkaline earth metal, thereby forming an alpha -formyl sulfide of the formula Also, 2-hydrocarbylthioaldoximes are prepared by oximating the above alpha -formyl sulfides by reaction with a source of hydroxylamine. Additionally, 2-hydrocarbylthioaldoximes are prepared by a process which comprises halogenating an aldehyde having the formula WHEREIN R' and R'' are defined as above, to form an alpha -haloaldehyde of the formula WHEREIN X is defined as above, reacting in an aqueous medium the alpha -haloaldehyde with a thiol salt of the formula R'''SM, wherein R''' and M are defined as above, to form an alpha -formyl sulfide of the formula AND OXIMATING THE alpha -FORMYL SULFIDE TO FORM A 2-HYDROCARBYLTHIOALDOXIME OF THE FORMULA</p> |
