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The synthesis of azaprotoanemonine and three of its methylhomologs, starting from the corresponding 4-oxo-2-pentenoic acids, is described. 相似文献
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The synthesis of 7.8-dihydro-6H-indeno[4.5-b]thiophene (3), 6.7-dihydro-5H-indeno[5.6-b]thiophene (6), and their 2-methyl- and 2-ethyl-homologues (4, 5, 7, 8) is described. 相似文献
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Ohne Zusammenfassung 相似文献
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Wilhelm Fleischhacker Bernd Richter Ernst Urban 《Monatshefte für Chemie / Chemical Monthly》1989,120(8-9):765-769
Summary Starting from 4-methoxy-1,3-benzodioxol-5-carbaldehyde (croweacin aldehyde,3) a six-step synthesis of cotarnin iodide (9, 67% total yield) is described. 相似文献
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Synthesis of phosphorus oxy halides A general method for the preparation of phosphorus oxy halides from thiophosphoric esters is described. 相似文献