缩酮

固载杂多酸PW（12）/C催化合成环己酮乙二醇缩酮

Catalytic Synthesis of Cyclohexanone Ethylene Ketal by Supported Heteropolyacid Catalyst PW_ ( 12 ) / C

在酮醇物质的量比为1∶1.5，催化剂用量2.0%，带水剂环己烷10mL，反应时间80min的条件下，环己酮1,3丁二醇缩酮的收率可达94.0%。

The yield of cyclohexanone 1 , 3-butanediol ketal was up to 94.0 % when molar ratio of cyclohexanone to 1 , 3-butanediol was 1 ∶ 1.5 , amount of catalyst was 2.0 % , water-carrying agent was 10 mL , and reaction time was 80 mins .

TiO2/SO4~（2-）催化季戊四醇双缩醛或双缩酮的合成

Synthesis of Diacetals from Aldehydes and Ketones with Pentaerythritol Catalysed by TiO_2 / SO_4 ~ ( 2 - ) Solid Superacid

FeCl3-漆酚树脂催化合成酯、缩醛和缩酮的研究

Fecl_3 urushiol resin catalyzed synthesis of ester , acetal and ketals

将维生素C作为催化剂用于缩醛和缩酮的合成中，由乙二醇或1,2-丙二醇与醛或酮中的羰基反应生成缩醛或缩酮。

The catalyst of vitamin C was first used in the synthesis of acetals and ketals . Glycol or 1,2-propanediol reacted with the carbonyl group of aldehydes or ketones in the presence of vitamin C to yield acetals or ketals .

α－氧代烯酮二硫代缩酮化学（XXXⅡ）&由2－（1，3－亚丙二硫基）亚甲基环己酮合成酚醚类化合物

The Chemistry of α - Oxo Ketene Dithioacetals ( X X X ⅱ) - Synthesis of Aryl Ethers via 2 - ( 1,3-Dithiopropylene ) methylene Cyclohexanone

以十二水合硫酸铁铵作催化剂，相转移催化剂（PTC）PEG-400为助催化剂，利用超声波和微波辐射催化缩酮反应。

The ketol reaction is catalyzed by ammonium ferric sulfate in the presence of PEG - 400 as a PTC under ultrasound and microwave irradiation .

结果表明：催化剂表面存在明显的Bronsted酸中心，对缩酮化反应的催化活性好，且催化活性随灼烧温度的升高而降低。

The results showed that the catalysts had Bronsted acid centers and the catalytic activity decreased with the rising of calcination temperature .

基于α-肉桂酰环乙烯酮二硫缩酮的一类新型D-A有机发光材料的理论

Theoretical Investigation on Novel Donor-acceptor Materials with Organic Light-emitting Diodes Based on α - Cinnamoyl Cyclic Ketene Dithioacetals

SO4~（2-）/TiO2-WO3催化合成环己酮1,2-丙二醇缩酮

Catalytic Synthesis of Cyclohexanone 1,2-Propanediol Ketal with SO_4 ~ ( 2 - ) / TiO_2-WO_3

α－氧代烯酮环二硫代缩酮化学（XXXI）&α－肉桂酰基乙烯酮缩1，3－丙二硫醇与Grignard试剂的共轭加成反应

The Chemistry of α - Oxo Ketene Cyclic Dithioacetals ( XXXI ) ── Studies on the conjugated addition of α - Cinnamoyl Ketene - 1 , 3-Propylene-dithioacetal with Grignard Reagents

用ZrO2和La2O3对固体超强酸催化剂SO42-/Fe2O3进行改性，并将改性催化剂用于以新戊二醇和异丁基氯代苯丙酮为原料催化合成布洛芬药物中间体&缩酮。

Solid superacid catalyst SO 4 2 - / Fe 2O 3 was modified by ZrO 2 and La 2O 3 . The ketal , a intermediate for producing Ibuprofen , was synthesized by condensation reaction using SO 4 2 - / Fe 2O 3-ZrO 2-La 2O 3 as catalyst .

CpTiCl3-LiAIH4体系的研究&环状缩醛和缩酮的还原

Studies on CpTiCl_2-LiAlH_4 System & Reduction of Cyclic Acetals and Ketals

具有生理活性的天然螺缩酮化合物研究进展

Progress in the Studies on Biological Activities of Natural Spiroketal Compounds

以硅钨酸为催化剂合成了环己酮乙二醇缩酮。

Cyclohexanone ethylene ketal is synthesized with silicotungstic acid as catalyst .

固体酸催化合成环已酮1,2-丙二醇缩酮进展

Progress on Synthesis of Cyclohexanone 1,2-propylene Ketal Catalyzed by Solid Acid

在此条件下，苯乙酮环乙二缩酮的收率可达83.3%%以上。

The yield of acetophenone cylic ethylic ketal was 83.3 % .

乙酰丙酮钇催化环氧氯丙烷的均聚合与共聚合苯乙酮1,2-丙二醇缩酮的合成研究

POLYMERIZATION OF EPICHLOROHYDRIN BY YTTRIUM ACETYLACETONATE Synthesis of Acetophenone 1,2-Propanediol Ketal

硫酸铁铵催化合成环已酮乙二缩酮

Synthesis of Cyclohexanone Ethylene Ketal Catalyzed by Ammonium Ferric Sulfate

环己酮乙二醇缩酮的微波合成研究

Study on the Synthesis of Ethylene Glycol Cyclohexane Ketal by Microwave Irradiation

以单质碘为催化剂合成了环戊酮乙二缩酮。

Cyclopentanone ethylene ketal was synthesized with I_2 as catalyst .

萘普生不对称合成的中间体缩酮制备方法改进

Improved preparation of homochiral acetal for asymmetric synthesis of naproxen

碘催化合成环己酮乙二醇缩酮

Catalytic synthesis of cyclohexanone ethylene glycol ketal by iodine

硫酸铵改性粉煤灰催化合成环己酮乙二醇缩酮

Synthesis of cyclohexanone glycol ketal with fly ash catalyst modified by ammonium sulfate

磺化硅胶催化合成环己酮1,2-丙二醇缩酮

Catalytic synthesis of sulfonated silica gel cyclohexanone 1,2-propanediol ketal

活性炭负载柠檬酸催化合成环己酮1,2-丙二醇缩酮

Synthesis of cyclohexanone 1,2-propylene ketal using active carbon supported citric acid as catalyst

以磷钨杂多酸银盐为催化剂合成丁酮乙二醇缩酮

Synthesis of ketal catalyzed with silver salts of tungstophosphoric

超声波和微波辐射催化缩酮反应

Catalysis of Ketol Reaction by Ultrasound and Microwave Irradiation

三氯化镧催化合成缩酮

Three . catalytic synthesis of ketal over lanthanium trichloride

改性钼镍粉在催化缩酮反应中的应用

Application of modified molybdenum nickel powder catalysis ketal reaction