http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
오늘 본 자료
Aromatic Disulfide를 이용한 Sulfenimine의 합성
丁國聲,朱東駿 慶熙大學校 1989 論文集 Vol.18 No.-
The method used for the preparation of sulfenimines is condensation of a sulfenamide with aldehydes or ketones, and oxidation of the sulfenamides and reaction of aromatic thiols with N-chloro-p-quinone imine, condensation of aromatic disulfides, metal, ammonia and aldehydes or ketones. Several metal ions such as silver, mercury, zinc, copper, cadmium, tin, and lead were employed as catalysts. Among metal ions, silver was superior to other metal catalysts in preparing sulfenimines resulting in high yield. Using the similar procedure, various sulfenimines from α-keto ester or α-keto acid were synthesized. Comparing the results of this study with the result from aldehydes or ketones revealed that steric factor might play an important role in the synthesis of sulfenimines.