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- cyclohexanone ketal N 乙酰丙酮缩-N
- Catalytic synthesis of ketal by urushiol-formaldehyde neodymium polymer from cyclohexanone and ethanediol was studied. 以环己酮和乙二醇为原料,漆酚缩甲醛钕聚合物为催化剂合成了环己酮乙二醇缩酮。
- Cyclohexanone 1,2-propanediol ketal was synthesized from cyclohexanone and 1,2-propanediol in the presence of copper benzene sulfonate . 以苯磺酸酮为催化剂,环己酮与1,2-丙二醇合成了环己酮1,2-丙二醇缩酮。
- Under microwave irradiation,cyclohexanone 1,2-propylene ketal was synthesized from cyclohexanone and 1,2-propanediol using HPW as catalyst. 在微波辐射下,以磷钨酸为催化剂,以环己酮和1,2-丙二醇为原料合成了环己酮1,2-丙二醇缩酮。
- He fought in the N African campaign during the last war. 在上次战争中他在北非战役参战。
- Cyclohexanone ethylene ketal was synthesized from cyclohexanone and ethylene in the presence of ammonium ferric sulfate. 对以十二水硫酸铁铵为催化剂,以环己酮和乙二醇为原料合成环己酮乙二醇缩酮的反应条件进行了研究。
- Cyclohexanone ethylene ketal was synthesized using vitamin C as the catalyst by microwave irradiation solvent-free method. 以维生素C为催化剂,采用微波辐射无溶剂催化合成环己酮乙二醇缩酮,探索了不同反应条件对产率的影响。
- The effects of reactant mole ratio,catalyst dosage,microwave irradiation power and microwave irradiation time on the yield of cyclohexanone glycol ketal were investigated. 用十二水硫酸铁铵作催化剂,微波辐射催化合成环己酮乙二醇缩酮。
- Ethylene glycol cyclohexane ketal was synthesized under microwave irradiation from cyclohexanone and ethylene glycol in the presence of p-toluene sulphonic acid. 通过微波合成法,以对甲苯磺酸为催化剂,由环己酮与乙二醇合成环己酮乙二醇缩酮。
- That will be a total of eighty N T. 那总共八十台币。
- Rock-'n'-roll was started in the 1950s. 摇滚乐发源于20世纪50年代。
- Rest unclogs our 18th n substitute af. 请取消我方18日的订单,并以下列代替。
- I can't make head (n)or tail of these instructions. 我对这说明书摸不着头脑.
- The family of nine pig it I n one room. 一家九口挤在一间屋里。
- B: I like listening to Rock 'n' Roll. 我喜欢听摇滚乐。
- Go N to kill the dragon and get the blade. 从北边的房间出去,到山洞中杀龙,得炎之剑。
- They were delegates from India to the U. N. 他们是印度派到联合国的代表。
- Cyclohexanone 1,2propanediol ketal is synthesized from cyclohexanone and 1,2propanediol in the presence of I 2/PAn as catalyst. The factors influencing the yield are discussed and the best conditions are found out by orthogonal test. 以碘掺杂聚苯胺为催化剂,对环己酮与1,2-丙二醇为原料合成环己酮1,2-丙二醇缩酮的反应条件进行了正交实验研究,较系统地研究了环己酮与1,2-丙二醇物质的量比、催化剂用量、反应时间等因素对收率的影响。
- Both transistors are not of the n. p. n type. 两个晶体管不都是n.;p
- Adjoin two new vertices X and Y to N. 在N中添加两个新顶点X和Y。