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1)  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。
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2)  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。
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3)  tandem azWittig reaction
串联氮杂Wittig反应
1.
Imidazolonyl)-1,2,4-triazoles (3) were synthesized via tandem azWittig reaction of vinyliminophosphorane (1) with ar omatic isocynate and 1H-1,2,4-triazole.
研究了应用烯基膦亚胺 (1)与芳基异氰酸酯、1H 1,2 ,4 三唑的串联氮杂Wittig反应 ,合成 1 (2 咪唑啉酮基 ) 1H 1,2 ,4 三唑衍生物 (3)的方法 ,探讨了成环反应的条件以及所合成的新型杂环化合物的杀菌活性 。
4)  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
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5)  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。
6)  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%。
补充资料：氮杂蒽
分子式：C13H9N
分子量：179.220
CAS号：260-94-6

性质：近乎无色的晶体。熔点111℃，沸点345-346℃，相对密度1.005(20/4℃)。易溶于乙醇、乙醚、烃类和二硫化碳，微溶于沸水。具有弱碱性。有辛辣气味和灼烧味。吖啶的稀溶液及其盐类分别有绿色或紫色荧光。煤焦油含有吖啶，主要集中于一蒽油馏分。

制备方法：由吖啶酮制取。吖啶酮由二苯胺-2-羧酸用硫酸并环而得，再用戊醇和钠还原成9,10-二氧吖啶后氧化得到吖啶。实验室制备也可以将吖啶酮与锌粉混合加热。反应生成的吖啶升华物溶解于盐酸，再用氢氧化钠溶液碱化，析出沉淀，过滤得粗品。用甲醇重结晶可得熔点为110℃的精品。

用途：吖啶的结构与蒽相似，化学性质也很接近。吖啶苯环上的氢被氨基取代后，是吖啶染料的中间体。在吖啶化合物中，有的具有防腐性，可用作医药，例如吖啶黄和阿的平。

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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