2) 4H-chromene derivative
4H-色烯衍生物
3) 4H-benzo-[f]-chromene derivatives
4H-苯并-[f]-色烯衍生物
1.
A series of 2-amino-4-aryl-4H-benzo-[f]-chromene derivatives have been synthesized by reaction of aryldehyde, malononitrile or ethyl cyanoacetate with β-naphthol catalyzed by KF-Al2O3 in ethyl alcohol, the structure was characterized by IR, and 1HNMR.
以芳醛、丙二腈或氰乙酸乙酯和β-萘酚为原料,在KF-Al2O3催化下在乙醇中合成了系列的2-氨基-4-芳基- 4H-苯并-[f]-色烯衍生物,并通过IR,1HNMR证实其结构。
5) olefinic derivatives
烯烃衍生物
1.
This paper presents the synthesis of arsonium salts 1 and its with arenealdehydes, ketones in the two phase system of DMF-H2O-50%NaOCH3,to afford stereoselectivity olefinic derivatives 3a￣f, and yields 80-91%.
报道了溴化α－呋喃亚甲基三苯鉮的合成及其与芳醛、酮的相转移催化反应，获得高产率立体专一性的烯烃衍生物。
补充资料：吡啶烷基衍生物蒸馏残余物氯化苄季铵化物
CAS：97375-31-0
中文名称：吡啶烷基衍生物蒸馏残余物氯化苄季铵化物
英文名称：Pyridine, alkyl derivs., distn. residues, benzyl chloride-quaternized
中文名称：吡啶烷基衍生物蒸馏残余物氯化苄季铵化物
英文名称：Pyridine, alkyl derivs., distn. residues, benzyl chloride-quaternized
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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