초록 ▼

The subject application discloses a chiral nonracemic composition of the general formula: R1－Ar－O－CH2－C*HX－C*HY－CH2－O－R2 wherein R1 is an achiral tail of two to sixteen carbons; Ar is an achiral FLC core of at least two rings; * denotes a chiral carbon; X and Y are halogens; and R2 is one to ten car

The subject application discloses a chiral nonracemic composition of the general formula: R1－Ar－O－CH2－C*HX－C*HY－CH2－O－R2 wherein R1 is an achiral tail of two to sixteen carbons; Ar is an achiral FLC core of at least two rings; * denotes a chiral carbon; X and Y are halogens; and R2 is one to ten carbon atoms. The －O－CH2－C*HX－C*HY－CH2－O－segment comprises the chiral proximal segment of the chiral tail; the proximal segment is selected from the enantiomers 2R,3R-dihalo and 2S,3S-dihalo. R2 is the distal segment of the chiral tail.

대표청구항 ▼

A chiral nonracemic compound of the formula: R1－AR－O－CH2－C*HX－C*HY－CH2－O－R2 wherein * denotes a chiral carbon, X and Y are halogens selected from the group of chlorine and fluorine, the [－O－CH2－C*HX－C－HY－CH2－O－]－O－CH2－C*HX－C*HY－CH2－O－segment comprises the chiral proximal segment of the chiral tails

A chiral nonracemic compound of the formula: R1－AR－O－CH2－C*HX－C*HY－CH2－O－R2 wherein * denotes a chiral carbon, X and Y are halogens selected from the group of chlorine and fluorine, the [－O－CH2－C*HX－C－HY－CH2－O－]－O－CH2－C*HX－C*HY－CH2－O－segment comprises the chiral proximal segment of the chiral tails, said proximal segment being selected from the enantiomers 2R,3R-dihalo and 2S,3S-dihalo, R1 is an achiral alkyl, alkyl sulfide, alkyl ether, alkenyl, alkenyl sulfide, alkenyl ether, alkoxy, alkoxy sulfide, or alkoxy ether group of two to sixteen carbons, Ar is an achiral FLC core selected from the group consisting of phenylbenzoates, phenylpyrimidines, biphenyls, phenylpyridines, biphenylbenzoates, diphenylpyrimidines, diphenylpyridines, terphenyls, phenyldiazenes, diphenyldiazenes, and diphenylthiadiazoles, and the chiral proximal segment and R1 para-substituted with respect to each other on outer rings of said core, and R2 is a distal segment of the chiral tail comprising one to ten carbon atoms and is selected from the group consisting of alkdehyde, alkyl acyl, alkyl, alkenyl, alkenyl acyl, alkyl halide, alkenyl halide, alkyl epoxide, and alkenyl epoxide.