Organic compounds -- part of the class 532-570 series – Organic compounds – Oxygen containing
Patent
1994-06-24
1995-07-04
Lone, Werren B.
Organic compounds -- part of the class 532-570 series
Organic compounds
Oxygen containing
568426, 568427, 568433, 568438, 568454, C07C 4550, C07C 4567, C07C 4578
Patent
active
054301947
ABSTRACT:
The present invention relates to a process for producing an optically active aldehyde (first aldehyde) containing a reduced amount of the corresponding enantiomeric aldehyde (second aldehyde) which process comprises: (1) providing an initial solution containing a non-eutectic mixture of the first aldehyde and the second aldehyde, which mixture has a composition in the compositional region where only the first aldehyde crystallizes when its solubility limit in the solution is exceeded, and (2) maintaining the solution at a temperature above the eutectic temperature of the mixture and under conditions such that the solubility limit of the first aldehyde is exceeded so as to form a crystalline first aldehyde containing relatively less of the second aldehyde than was present in the initial solution.
REFERENCES:
patent: 4242193 (1980-12-01), Moeglch
patent: 5248813 (1993-09-01), Manimaran et al.
patent: 5260482 (1993-11-01), Pringle et al.
Wink, Donald J. et al., Inorg. Chem. 1990, 29, 5006-5008.
Stille, John K. et al., Organometallics 1991, 10, 1183-1189.
Pottier, Y. et al., Journal of Organometallic Chemistry, 370 (1989), 333-342.
Manimaran et al., Tetrahedron: Asymmetry vol. 4, No. 8, pp. 1949-1954, 1993.
RajanBabu et al., J. Am. Chem. Soc. 1992, 114, 6265-6266.
Barner Bruce A.
Briggs John R.
Kurland Jonathan J.
Moyers, Jr. Charles G.
Lone Werren B.
Trautlein Eugene C.
Union Carbide Chemicals & Plastics Technology Corporation
LandOfFree
Process for improving enantiomeric purity of aldehydes does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Process for improving enantiomeric purity of aldehydes, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for improving enantiomeric purity of aldehydes will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-761514