广州大学学报:自然科学版
廣州大學學報:自然科學版
엄주대학학보:자연과학판
Journal og Guangzhou University:Natural Science Edition
2012年
6期
43-46
,共4页
祁芳菲%古凤强%黄甜%李镇锋%刘天穗%陈亿新%陈国术
祁芳菲%古鳳彊%黃甜%李鎮鋒%劉天穗%陳億新%陳國術
기방비%고봉강%황첨%리진봉%류천수%진억신%진국술
α-取代-1%,3-二羰基化合物%烯丙基化%季碳中心
α-取代-1%,3-二羰基化閤物%烯丙基化%季碳中心
α-취대-1%,3-이탄기화합물%희병기화%계탄중심
α-substituted-1,3-dicarbonyl compounds%allylation%quaternary carbon centers
许多天然产物和药物活性分子往往因为季碳中心的存在而表现出更好的理化性质和生物活性.文章首先以氢化钠作碱,利用酮和酯反应得到了一系列的α-取代-1,3-二羰基化合物,收率50%~87%;然后进一步通过烯丙基化反应成功合成了具有3个官能团(2个羰基和1个烯基)的季碳砌块,产率为50%~93%.并对合成的α-取代-1,3-二羰基化合物和烯丙基化产物进行了1HNMR表征.
許多天然產物和藥物活性分子往往因為季碳中心的存在而錶現齣更好的理化性質和生物活性.文章首先以氫化鈉作堿,利用酮和酯反應得到瞭一繫列的α-取代-1,3-二羰基化閤物,收率50%~87%;然後進一步通過烯丙基化反應成功閤成瞭具有3箇官能糰(2箇羰基和1箇烯基)的季碳砌塊,產率為50%~93%.併對閤成的α-取代-1,3-二羰基化閤物和烯丙基化產物進行瞭1HNMR錶徵.
허다천연산물화약물활성분자왕왕인위계탄중심적존재이표현출경호적이화성질화생물활성.문장수선이경화납작감,이용동화지반응득도료일계렬적α-취대-1,3-이탄기화합물,수솔50%~87%;연후진일보통과희병기화반응성공합성료구유3개관능단(2개탄기화1개희기)적계탄체괴,산솔위50%~93%.병대합성적α-취대-1,3-이탄기화합물화희병기화산물진행료1HNMR표정.
Many natural products and active pharmaceutical molecules with quaternary carbon center tend to show better physical and chemical properties and biological activity. Herein a series of α-substituted-1 ,3- dicar- bonyl compounds were synthesized from the reaction between ketone and ester with sodium hydride as base and then were allylated to construct quaternary synthetical building-block with muhifunctional groups in yield 75 % to 93%. All the products were characterized by 1H NMR.