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1)  α,β-unsaturated-d-lactone
α,β-不饱和δ-内酯
2)  α,β-unsaturated-δ-lactone
α,β-不饱和-δ-内脂环
1.
The α,β-unsaturated-δ-lactone was successfully formed by the oxidation of 1,5-diols in the presence of catalytic 2,2,6,6-tetramethyl-1-piperidinyloxy (TEMPO) and excess trichloroisocyanuric acid (TCCA).
该合成路线的关键步骤为:铟粉引发对醛的二氟炔丙基化反应引入二氟亚甲基;在2,2,6,6-四甲基-1-氧基哌啶(TEMPO)催化下,三氯异氰尿酸(TCCA)氧化1,5-二醇高效率地关环生成α,β-不饱和-δ-内脂环。
3)  α,β-unsaturated-γ-keto-lactone
α,β-不饱和-γ-缩酮内酯
4)  α,β-unsaturated esters
α,β-不饱和酯
1.
A reducing system,NaBH4-CuCl/CH3OH,was applied for the selective reduction of carbon-carbon double bond of α,β-unsaturated esters with high selectivity.
用NaBH4-CuCl/CH3OH体系高选择地还原了α,β-不饱和酯的碳碳双键,考察了还原剂NaBH4和CuCl的用量、溶剂、不同的卤化物等因素对反应的影响。
2.
Cyclopentenone derivatives and α,β-unsaturated esters are two sorts of extraordinary important compounds.
环戊烯酮衍生物和α,β-不饱和酯是两类非常重要的化合物。
5)  α,β-unsaturated ketones and esters
α,β-不饱和酮、酯
1.
Treatment of the polymer-supported α-phenylseleno ketones and esters prepared from polymer-supported selenium bromide with ketone and ester enolates with hydrogen peroxide afford α,β-unsaturated ketones and esters in good yields and high purities (>95%) without further purification.
酮或酯在-78℃经二异丙基胺基锂(LDA)作用形成相应的烯醇式氧负离子,烯醇式氧负离子再与聚苯乙烯负载硒溴反应得到聚苯乙烯负载α-硒基酮或酯;常温下将该负载型的α-硒基酮或酯用过量的30%双氧水处理制得相应的α,β-不饱和酮、酯。
6)  α,β-unsaturated ester
α,β-不饱和酯
1.
The reaction results in the direct carbon-carbon double bond formation from silyl ethers to give the corresponding α,β-unsaturated esters.
该反应使硅醚直接形成碳碳双键而得到α,β-不饱和酯。
补充资料:3β,17β-二羟基雄甾-5-烯-17α-丙酸内酯
分子式:C22H32O3
分子量:344.50
CAS号:14009-58-6

性质:结晶。

制备方法:可用17α-乙炔基-3β,17β-二羟基雄甾-5-烯(即乙炔雄烯二醇)经(乙炔基上甲基碘化镁)置换并羧化、水解,生成3β,17β-二羟基雄甾-5-烯-17α-丙炔酸,然后经成盐、(炔键上)催化氢化、内酯化制得该品。

用途:安体舒通的中间体。

说明:补充资料仅用于学习参考,请勿用于其它任何用途。
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