1) Wittig reaction
Wittig反应
1.
Synthesis of (L)-Lactataldehyde and stereoselectivity of its Wittig reaction.;
L-乳醛的合成及Wittig反应立体选择性
2.
Synthesis of fluorescent brightener DX.EB based on Wittig reaction;
利用Wittig反应合成荧光增白剂DX.EB
3.
Aplication of Wittig reaction and the modified method in fluorescent whitener syntheses;
Wittig反应及其改良法在荧光增白剂合成中的应用
2) Wittig-Horner reaction
Wittig-Horner反应
1.
A series of π-conjugated compounds with biphenyl chromophore were synthesized from 4,4'-bis(diethoxy phosphonomethyl)-diphenyl and aromatic aldehydes(or cinnamaldehyde) by Wittig-Horner reaction with alkali-assisted catalysis in DMF solution.
以4,4-(二乙氧基膦酸)联苯苄酯和芳香醛(或肉桂醛)为原料,碱催化下,在DMF溶液中,经过Wittig-Horner反应,合成了7种含苯乙烯基联苯类化合物。
2.
Six novel 2,5-bis[4-(2-arylvinyl)phenyl]-1,3,4-oxadiazoles were designed and synthesized through Wittig-Horner reaction by embedding electron-transporting 1,3,4-oxadiazole in PPV oligomer, which are one kind of blue luminescence materials with highly hole injection, and their chemical structures were also determined to show trans-vinylene character according to IR and 1H NMR spectra.
二乙烯联苯及其衍生物是一种可发射蓝光的小分子空穴型有机发光材料,通过Wittig-Horner反应,将电子传输型噁二唑环“嵌入”其中,设计合成了6个2,5-二[4-(2-芳基乙烯基)苯基]-1,3,4-噁二唑化合物。
3) bis-Wittig reaction
bis-Wittig反应
1.
Natural occurring diene fatty acid ester 7a and its derivatives 7b,7c were easily synthesized in 24%-30% yields by the bis-Wittig reactions of bis-Ylide 2 resulted easily from the reaction of the corresponding bis-phosphonium salt and n-BuLi,with two different aldehydes.
双季鏻盐1与n-BuLi反应生成膦双叶德2,接着与两种不同的醛发生bis-Wittig反应成功地合成了天然产物二烯脂肪酸甲酯7a及两个新的类似物7b和7c,产率为24%～30%。
4) aza-Wittig reaction
aza-Wittig反应
1.
The imidazolinone derivatives(5a~5c) were synthesized by a tandem aza-Wittig reaction of iminophosphorane 3 with aryl isocynate and hydrazine.
由叠氮乙酸乙酯1与氯化苄反应,合成叠氮化合物2,2与三苯基膦发生Staudinger反应制得膦亚胺3,3与异氰酸苯脂、肼通过串连aza-Wittig反应合成了3个新的咪唑啉酮衍生物5 a~5 c。
2.
The imidazolinone derivatives(5a~5f) were synthesized by a tandem aza-Wittig reaction of 3 with aryl isocynate and substituted arylthiols.
由叠氮乙酸乙酯与二茂铁甲醛反应合成含二茂铁基的叠氮化物(2),2与三苯膦发生Staudinger反应制得膦亚胺(3),3与异氰酸苯脂、(取代)硫酚通过串连aza-Wittig反应合成了6个新的咪唑啉酮衍生物。
3.
In this paper, we studied the synthesis of novel thienopyrimidine derivatives and thienopyrimidine derivatives via aza-Wittig reaction.
本论文研究了运用原料易得、条件温和及收率较高的aza-Wittig反应方法，来合成噻吩并嘧啶类杂环化合物，并探索了所合成化合物的成环反应条件、波谱性质与生物活性，发现部分化合物具有较好的杀菌活性。
5) aza-Wittig reaction
氮杂Wittig反应
1.
A series of new tetrahydrobenzo[4',5']thieno[3',2':5,6]pyrido[4,3-d]pyrimidin-4(3H)-one deriva- tives 6 have been designed and synthesized via a tandem aza-Wittig reaction.
通过氮杂Wittig反应合成了一系列结构新颖的未见文献报道的取代四氢苯并[4',5']噻吩并[3',2':5,6]吡啶并[4,3-d]嘧啶-4(3H)-酮化合物6,产物的结构通过核磁共振氢谱、质谱、红外光谱、元素分析的确证。
2.
The carbodiimides 2, obtained from aza-Wittig reactions of vinyl iminophosphorane 1 with aromatic isocyanates, reacted with hydrazine to give 1-amino-2-arylamino-4-arylidene-4,5-dihydro-imidazol-5-ones (4).
应用芳基异氰酸酯与烯基膦亚胺1的氮杂Wittig反应,得到的碳二亚胺2,再与水合肼作用得到氨基咪唑啉酮衍生物4。
3.
Twelve 2-thioquinazolin-4-ones were rapidly synthesized by a new parallel synthetic method,which included aza-Wittig reaction of iminophosphorane with carbon disulfide to give phenyl isothiocyanate and subsequent reaction of isothiocyanate with various amines in a parallel fashion.
研究了合成2-硫代-4-喹唑啉二酮的合成方法,该方法应用膦亚胺与CS2的氮杂Wittig反应,得到异硫氰酸苯酯,再与伯胺平行反应,一次性合成了10种喹唑啉二酮衍生物,产率在61。
6) aza Wittig reaction
氮杂Wittig反应
1.
Substituents were introduced to the position 2 of quinazolinones by aza Wittig reaction of iminophosphorane reagent to give nine novel derivatives.
利用膦亚氨试剂的氮杂Wittig反应在喹唑啉酮的 2位导入取代基 ,制得了 9个 2 芳氧基喹唑啉酮的新衍生物。
2.
Recent advances in aza Wittig reaction, including intermolecular, intramolecular and tandem ones , are reviewed.
综述了最近几年氮杂Wittig反应的研究进展 ,包括分子间氮杂Wittig反应、分子内氮杂Wittig反应及串联的氮杂Wittig反应。
补充资料：silyl-Wittig reaction
分子式：
CAS号：
性质：或称作（甲）硅烷基-维蒂希反应（silyl-Wittig reaction）α-（甲）硅烷基金属化合物与醛、酮反应生成的β-羟基（金属盐）（甲）硅烷，可被分离出来，在等摩尔强碱作用下，或酸催化下容易发生β-消除反应生成烯烃。是20世纪80年代以来合成烯烃的重要方法之一。
CAS号：
性质：或称作（甲）硅烷基-维蒂希反应（silyl-Wittig reaction）α-（甲）硅烷基金属化合物与醛、酮反应生成的β-羟基（金属盐）（甲）硅烷，可被分离出来，在等摩尔强碱作用下，或酸催化下容易发生β-消除反应生成烯烃。是20世纪80年代以来合成烯烃的重要方法之一。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条