Title:
大環状ケトンの製造方法
Document Type and Number:
Japanese Patent JP4229365
Kind Code:
B2
Abstract:
The invention relates to a novel thermo-isomerization method for the rapid and simple production of macrocyclic ketones of formula (Ia) or (Ib). While being in the gas phase at temperatures of greater than 500 DEG C, the macrocyclic ketones can be directly produced from alcohols of formulas (IIa) and (IIb) with high yields and in a rapid and simple manner. In formulas (Ia, Ib, IIa and IIb), R1 to R5 and n have the meanings as cited in the description.
Inventors:
Flutter, georg
Nagel, matias
Nagel, matias
Application Number:
JP2002567888A
Publication Date:
February 25, 2009
Filing Date:
February 15, 2002
Export Citation:
Assignee:
Givaudan SA
International Classes:
C07C45/51; C07C29/40; C07C29/42; C07C35/02; C07C35/20; C07C35/205; C07C45/42; C07C49/307; C07C49/385; C07C49/413; C07C49/427; C07C49/547; C07C49/587; C07C49/607; C07F7/18; C11B9/00
Domestic Patent References:
| JP5246904A | ||||
| JP11322662A |
Foreign References:
| US4393245 | ||||
| DE2852344A1 |
Other References:
Synlett,1994年,p.351-352
Helvetica Chimica Acta,1928年,Vol.11,p.686-700
J. Chem. Soc. Perkin Trans. I,1977年,p.2497-2502
Tetrahedron Letters,1970年,No.7,p.513-516
Tetrahedron Letters,1987年,Vol.28, No.14,p.1549-1552
Helvetica Chimica Acta,1928年,Vol.11,p.686-700
J. Chem. Soc. Perkin Trans. I,1977年,p.2497-2502
Tetrahedron Letters,1970年,No.7,p.513-516
Tetrahedron Letters,1987年,Vol.28, No.14,p.1549-1552
Attorney, Agent or Firm:
Kiyoji Kuzuwa
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