Screening of microbe for asymmetric reduction of prochiral aryl ketones and characterization of the reduction reaction;
不对称还原前手性芳香酮微生物的筛选及反应特性
Enantioselective reduction of prochiral aromatic ketones by samarium metal/chiral compounds/I_2/i-PrOH system;
金属钐/手性化合物/碘/异丙醇体系促进简单芳香酮的不对称还原反应
Methods A serials of thiosemicarbazones were synthesized by utilizing aromatic aldehyde,aromatic ketone and thiosemicarbazide in aqueous solution under ultrasound irradiation.
方法在超声辐射下水溶液中以取代芳香醛、芳香酮和氨基硫脲为原料探索合成缩氨基硫脲的最佳条件(P=250 W,t=8~15 min)。
Asymmetric reduction of aromatic ketones with baker’s yeast was studied.
研究了酵母细胞催化芳香酮的不对称还原反应,采用正交试验综合考察了反应温度、反应时间、底物浓度和酵母浓度等因素对底物苯乙酮转化率和产物(S)1苯基乙醇对映选择性的影响。
Determination of Content Muscone and Exaltone in Cosmetics by High Performance Liquid Chromatography;
应用高效液相色谱法测定麝香酮及黄蜀葵酮含量
Determination of Borneol and Muscone in Tongshuanxingnao Injections with Solid-phase Extraction and GC-MS;
固相萃取GC-MS法测定通栓醒脑注射液中冰片和麝香酮的含量
Synthesis of Muscone Mediator 2,15-Hexadecanedione from Tetrahydrofolate Coenzyme Model;
从四氢叶酸辅酶模型合成麝香酮中间体2,15-十六二酮
Compared with those in original oils, the contents of active compounds (patchouli alcohol and pogostone) rose by 27%～47% in the distillates Ⅱ and III.
结果 :得到 4个馏分 ,经GC MS检测 ,馏分Ⅱ和Ⅲ中广藿香醇和广藿香酮 2种有效成分的含量与广藿香原油相比提高了 2 7%～ 4 7%。
Results: β Patchoulene, β Elemene, cis Caryophyllene, trans Caryophyllene, seychellene, α Guaiene, α Patchoulene, δ Guaiene, unidentification component A, patchoulic alcohol, pogostone were determined in all samples, and the relative content of 11 components add up to 80 percent.
结果 :2 1个广藿香样品均含有 β 广藿香烯、β 榄香烯、顺式 石竹烯、反式 石竹烯、刺蕊草烯、α 愈创木烯、α 广藿香烯、δ 愈创木烯、未鉴定A、广藿香醇、广藿香酮等主要成分 ,以上 11种主成分相对含量约占挥发油总量的 80 %左右。
The results showed that essential oil and pogostone were very effective against Preris rapae L.
结果表明,广藿香精油和广藿香酮对菜粉蝶(Preris rapaeL。