PREPARATION OF ACETYLENE DERIVATIVE

PURPOSE:To prepare the titled compd. useful as a synthetic intermediate of sex pheromone, in high purity and yield, with simple process, by reacting sodium amide with acetylene in a specific solvent such as N-methyl-2-pyrrolidone, and reacting the product with an alkyl halide. CONSTITUTION:The objec...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	NAKAGAWA KAZUYUKI, OOTSUBO JIYUNICHIROU, OZAKI MASAAKI, FUJIMURA TSUTOMU
Format:	Patent
Sprache:	eng
Schlagworte:	ACYCLIC OR CARBOCYCLIC COMPOUNDS ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAININGELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN,SULFUR, SELENIUM OR TELLURIUM AGRICULTURE ANIMAL HUSBANDRY BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES, AS HERBICIDES CHEMISTRY CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS FISHING FORESTRY GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS HETEROCYCLIC COMPOUNDS HUMAN NECESSITIES HUNTING METALLURGY ORGANIC CHEMISTRY PEST REPELLANTS OR ATTRACTANTS PLANT GROWTH REGULATORS PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTSTHEREOF TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE TRAPPING
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Beschreibung
Zusammenfassung:	PURPOSE:To prepare the titled compd. useful as a synthetic intermediate of sex pheromone, in high purity and yield, with simple process, by reacting sodium amide with acetylene in a specific solvent such as N-methyl-2-pyrrolidone, and reacting the product with an alkyl halide. CONSTITUTION:The objective acetylen deriv. of formula II is prepared by (1) reacting sodium amide with acetylene in an N,N-di(lower alkyl)formamide, an N-(lower alkyl)pyrrolidone or hexamethylphosphoric acid triamide (pref. N- methyl-2-pyrrolidone), and (2) reacting the resultant sodium acetylide with an akkyl halide of formulaI(R is org. residue which can be made OH-protecting group; x is halogen, n is 6-10) (e.g. 8-bromo-1-octyl-2-tetrahydropyranyl ether). USE:A synthetic intermediate of sex pheromone of smaller tea tortrix.