Preparation of Unsaturated Higher Tertiary-amine from Unsaturated Higher Fatty Ester and Lower Tertiary-amine
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چکیده
منابع مشابه
An asymmetric approach toward chiral multicyclic spirooxindoles from isothiocyanato oxindoles and unsaturated pyrazolones by a chiral tertiary amine thiourea catalyst.
The first organocatalytic Michael-cyclization cascade reaction between isothiocyanato oxindoles and unsaturated pyrazolones has been developed. The multicyclic spiro[oxindole/thiobutyrolactam/pyrazolone] core structures containing three contiguous stereogenic centers, including two spiro quaternary centers, were prepared with excellent diastereo- (up to >20 : 1) and enantioselectivities (up to ...
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ژورنال
عنوان ژورنال: Journal of Japan Oil Chemists' Society
سال: 1969
ISSN: 1884-2003
DOI: 10.5650/jos1956.18.858