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AssigneeMitsui Chemicals, Inc.
InventorsHiroshi Sonoda, Kazunari Okada, Kenichi Goto, Kouki Fukumura, Junko Naruse, Hidetoshi Hayashi, Teruyuki Nagata, Akira Takahashi
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A preparation process of an acetylene derivative comprising reacting a compound having a skeleton represented by the formula (1): ##STR1## in the molecular formula with a compound represented by the formula (2): ##STR2## wherein R.sup.1, R.sup.2 R.sup.3 and R.sup.4 are individually an alkyl group having 1 to 6 carbon atoms and can be the same or different, R.sup.1 and R.sup.3 can bond each other to form a ring, and R.sup.1 and R.sup.2 or R.sup.3 and R.sup.4 can be bond each other to form one or two heterocyclic rings: or with a compound represented by the formula (3): wherein R.sup.1, R.sup.2, R.sup.3 and R.sup.4 are the same as in the formula (2), and X.sub.1 is a ##STR3## chlorine, bromine or iodine atom.
A preparation process of an acetylene compound from a ketone compound comprising reacting a ketone compound having a backbone represented by the formula (1) ##STR31## in the molecular formula with a compound represented by the formula (2) ##STR32## wherein R.sup.1, R.sup.2, R.sup.3 and R.sup.4 are individually an alkyl group having 1 to 6 carbon atoms and are the same or different, R.sup.1 and R.sup.2 are individual groups or are bonded to each other to form a ring, and R.sup.1 and R.sup.2 or R.sup.3 and R.sup.4 are individual groups or are bonded to each other respectively to form one or two heterocyclic rings:
Dependencies are inferred from the claim text.