A CONVENIENT METHOD FOR THE DIRECT PREPARATION OF KETONES FROM 2-(6-(2-METHOXYETHYL)PYRIDYL)CARBOXYLATES AND ALKYL IODIDES BY USE OF ZINC DUST AND A CATALYTIC AMOUNT OF NICKEL DICHLORIDE
作者:Makoto Onaka、Yoshio Matsuoka、Teruaki Mukaiyama
DOI:10.1246/cl.1981.531
日期:1981.4.5
Treatment of 2-(6-(2-methoxyethyl)pyridyl) carboxylates with alkyl iodides in the presence of zinc dust and a catalytic amount of NiCl2 in DMF at 50 °C affords unsymmetrical ketones in good yields by a one-pot procedure.
在锌粉和催化量的 NiCl2 的 DMF 存在下,在 50 °C 下用烷基碘处理 2-(6-(2-甲氧基乙基)吡啶基)羧酸酯,通过一锅法以良好的收率提供不对称酮。
Perfume composition and process for producing the same
申请人:——
公开号:US20030157228A1
公开(公告)日:2003-08-21
The invention relates to a flavoring composition having a better milk-like flavor and a process for producing the composition. The composition comprises a 5-alkenoic acid and/or a 6-alkenoic acid both represented by general formula (1) and a lower aliphatic aldehyde having not greater than 8 carbon atoms:
1
wherein n is an integer of from 1 to 4, and the dashed line represents the presence of a carbon-carbon double bond at either side. The composition may further comprise a &dgr;-lactone represented by general formula (2) and/or a &ggr;-lactone represented by general formula (3):
2
wherein n is an integer of from 1 to 4; and
3
wherein n is an integer of from 1 to 4.
PERFUME COMPOSITION AND PROCESS FOR PRODUCING THE SAME
申请人:SODA AROMATIC COMPANY, LIMITED
公开号:EP1396534A1
公开(公告)日:2004-03-10
The invention relates to a flavoring composition having a better milk-like flavor and a process for producing the composition. The composition comprises a 5-alkenoic acid and/or a 6-alkenoic acid both represented by general formula (1) and a lower aliphatic aldehyde having not greater than 8 carbon atoms:
wherein n is an integer of from 1 to 4, and the dashed line represents the presence of a carbon-carbon double bond at either side. The composition may further comprise a δ-lactone represented by general formula (2) and/or a γ-lactone represented by general formula (3):
wherein n is an integer of from 1 to 4; and
wherein n is an integer of from 1 to 4.
本发明涉及一种具有更好的牛奶香味的调味组合物以及生产该组合物的工艺。该组合物由通式(1)代表的 5-烯酸和/或 6-烯酸以及碳原子数不大于 8 的低级脂肪醛组成:
其中 n 为 1 至 4 的整数,虚线表示两侧存在碳碳双键。组合物可进一步包含通式(2)代表的 δ-内酯和/或通式(3)代表的 γ-内酯:
其中 n 为 1 至 4 的整数;以及
其中 n 为 1 至 4 的整数。
Moroe, Yakugaku Zasshi/Journal of the Pharmaceutical Society of Japan, 1950, vol. 70, p. 416,422
作者:Moroe
DOI:——
日期:——
Potentially Cyclic Difunctional Compounds Containing Substituent Methyl Groups