Aluminum propoxide for the Tishchenko condensation of propanal to propyl propionate is prepared from aluminum powder and propanol.
合成出的丙醇铝为催化剂,无水
化锌为助催化剂,用丙醛一步合成
丙
丙酯,收率可达92%,选择性可达93%。
Aluminum propoxide for the Tishchenko condensation of propanal to propyl propionate is prepared from aluminum powder and propanol.
合成出的丙醇铝为催化剂,无水
化锌为助催化剂,用丙醛一步合成
丙
丙酯,收率可达92%,选择性可达93%。
The isopropyl chloracetate was synthesized by esterification of chloracetic acid with isopropyl alcohol using aluminium phosphotungstate as catalyst.
乙
丙醇为原料,磷钨
铝作催化剂进行酯化反应,合成
乙
丙酯。
This paper texted the process to prepare metadoxine from vitamine B6 hydrochloric acid salt ,pyroglutamic acid and isoproanol.
本文维
素B6
化氢盐、焦谷氨
丙醇为原料,固相合成美他多辛,纯度达96.3%。
A new path for the preparation of leaf alcohol with 3-chloropropanol, triphenylphosphine and propionaldehyde through Wittig reaction was studied.
本文研究3-
丙醇,三苯基膦
丙醛为原料利用威蒂希反应合成叶醇的新路线。
Isopropyl cinnamylate was synthesized by the esterifiestion of isopropyl alcohol with cinnamic acid in the presence of potassium bisulfate monohydrate.
用硫氢钾催化肉桂
与
丙醇的酯化反应,合成
肉桂
丙酯。
The content of free acetic acid in cigarette smoke condensates was determined by GC-MS with isopropyl alcohol as the solvent and nonanol as the internal standard.
丙醇为溶剂,壬醇为内标,采用气相色谱-质谱法分析
卷烟烟气总粒相物中的游离乙
,乙
测定结果的相对标准偏差小于1%,平均回收率为99。
Two kinds of products can be obtained in the addition reaction of benzaldoxime with propinol, in which 3-hydroxymethyl-dihydroisoxazol is the main product when reaction equilibrium is reached.
炔丙醇的两种取向对应着加成反应的两种产物,反应达到平衡后,3-羟甲基二氢恶唑为主要产物。
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