您要查找的是不是：
- Cyclization occurs readily with dilute alkali. 遇到稀堿就容易環(huán)化。
- Levocetirizine Dihydrochloride was prepared from benzoyl chloride by acidylation,hydrogenation,cyclization with an overall yield of 8.05%. 以苯甲酰氯為原料;經(jīng)?；?還原;環(huán)合等反應合成左旋西替利嗪鹽酸鹽;反應總收率為8.;05%25。
- Study progress on cyclization of citronellal to(-)-isopulegol over catalysts is reviewed. 綜述催化香茅醛環(huán)化為(-)-異胡薄荷醇的催化劑研究進(jìn)展.
- Sodium ethylate was used as catalyst in Baker-Venkataraman of cyclization, and all factors were studied. 環(huán)合反應采用乙醇鈉作為Baker-Venkataraman重排反應的催化劑,研究了影響反應的各個(gè)因素。
- METHODS Gimeracil was synthesized by steps of condensation, cyclization, chlorination and hydrolysis. 方法以丙二腈為起始原料，經(jīng)縮合、環(huán)合、氯化、水解等5步反應制得吉美拉西。
- Application of samarium diiodide in mediating intramolecular cyclization reactions was reviewed. 綜述了二碘化釤在分子內環(huán)化反應中的應用。
- The mechanism was discussed in the proton acid catalytic reaction of furan phenol cyclization. 探討了呋喃酚環(huán)合反應質(zhì)子酸催化機理。
- The organometallic compounds - catalyzed cyclization reactions in syntheses of carbo -and heterocycles are reviewed. 綜述了近年來(lái)金屬有機化合物催化的環(huán)化反應在合成碳20環(huán)及雜環(huán)化合物中的應用。
- In contrast, switching the acylsilane functionality to an aldehyde, the radical cyclization failed. 至于將矽基酮的部分換成醛基時(shí)，自由基反應則無(wú)法進(jìn)行。
- Menthol was obtained from lemon eucalyptus oil via cyclization and catalytic hydrogenation. 以檸檬桉葉油為主要原料經(jīng)環(huán)化、催化氫化二步反應得到薄荷醇。
- The phenomonon was explained in view of the mechanism of chemical cyclization of poly(amic acid). 從聚酰胺酸化學(xué)環(huán)化反應機理出發(fā)對這一結果給予了解釋。
- By adapting continuous technique of adding SO3 in the cyclization process, the volum... 該工藝已實(shí)現產(chǎn)業(yè)化。利用此工藝,合成了其他硫雜蒽酮類(lèi)光引發(fā)劑。
- The presence of AM changes the cyclization reaction mechanism of copolymers from free radical to ionic. 結果表明，AM的引入改變了聚合物的環(huán)化機理，從自由基環(huán)化機理過(guò)渡為離子環(huán)化機理。
- METHODS Bretazenil was synthesized from 3-bromoaniline by cyclization, oxidation and ring-enlargement reaction, etc. 方法以3-溴苯胺為起始原料,經(jīng)過(guò)成環(huán)、氧化、擴環(huán)等反應得到目標產(chǎn)物。
- The effect of solvents and steric hidrance on the stereochemistry of cyclization is investigated in details. 并且考察了在環(huán)合反應中溶劑和空間位阻對立體選擇性的影響。
- Diazaspiro [4.4] nonane was synthesized from malononitrile as the starting material by a series of nucleleophilic displacement, hydrolytic cyclization and carbonyl reduction. 摘要以丙二腈為原料，經(jīng)過(guò)親核取代、水解環(huán)合、羰基還原系列反應，合成了2，7-二氮螺[4.;4]壬烷。
- Methods Starting with 3-fluorophenyl isocyanate and(R)-epichlorohydrin, linezolid was synthesized through cyclization, substitution, acylation, bromination, and condensation. 方法以(R)-環(huán)氧氯丙烷和間氟苯基異氰酸酯為起始原料，經(jīng)環(huán)化、疊氮化、還原、?；?、溴代、縮合反應得到利奈唑酮。
- METHODS Bropirimine was synthesized by 3 steps reaction of acylation, cyclization and bromination with ethyl acetoacetate as staring material. 方法以乙酰乙酸乙酯為起始原料,經(jīng)?；?、環(huán)合、溴化3步反應合成溴匹立明。
- Ketoprofen was synthesized from anline by amidation, cyclization, benzylation, hydrolysis, deamination and oxidation with an overall yield of 42.5 %. 以苯胺為起始原料;經(jīng)過(guò)酰胺化、環(huán)合、芐基化、水解、脫胺基、氧化等幾步反應;得到產(chǎn)物酮基布洛芬;總收率42.;5%25。
- Ionone was synthesized from Litsea cubeba oil and lemen oil,and condition of condensation,cyclization and purification of product was studied. 以山蒼子油、檸檬草油為原料合成紫羅蘭酮,研究了縮合反應、環(huán)化反應、產(chǎn)品精制的工藝條件;
