| 摘要 |
An optically active quaternary ammonium salt compound represented by formula (1),
wherein R 1 represents a halogen, a C 1-8 alkyl which is optionally substituted and which is linear, branched, or cyclic, a C 2-8 alkenyl which is optionally substituted, a C 2-8 alkynyl which is optionally substituted, a C 6-14 aryl which is optionally substituted, a C 3-8 heteroaryl which is optionally substituted, a C 1-8 alkoxy which is optionally substituted and which is linear, branched, or cyclic, or a C 7-16 aralkyl which is optionally substituted;
R 2 and R 21 each independently represents hydrogen, halogen, nitro, a C 1-8 alkyl which is optionally substituted and which is linear, branched, or cyclic, a C 2-8 alkenyl which is optionally substituted, a C 2-8 alkynyl which is optionally substituted, a C 6-14 aryl which is optionally substituted, a C 1-8 alkoxy which is optionally substituted and which is linear, branched, or cyclic, or a C 7-16 aralkyl which is optionally substituted;
one of combinations of R 1 and R 21 , and R 2 and R 21 , may bond to form a C 1-6 alkylene which is optionally substituted, a C 1-6 alkylenemonooxy which is optionally substituted, or a C 1-6 alkylenedioxy which is optionally substituted;
R 3 and R 4 each independently represents hydrogen, a C 6-14 aryl which is optionally substituted, a C 3-8 heteroaryl which is optionally substituted, or a C 7-16 aralkyl which is optionally substituted, with a proviso that R 3 and R 4 are not hydrogen at the same time;
R 5 represents hydrogen, halogen, a C 1-8 alkyl which is optionally substituted and which is linear, branched, or cyclic, a C 1-8 alkoxy which is optionally substituted and which is linear, branched, or cyclic, a C 2-8 alkenyl which is optionally substituted, or a C 2-8 alkynyl which is optionally substituted;
R 6 represents halogen, a C 1-8 alkyl which is optionally substituted and which is linear, branched, or cyclic, a C 1-8 alkoxy which is optionally substituted and which is linear, branched, or cyclic, a C 2-8 alkenyl which is optionally substituted, or a C 2-8 alkynyl which is optionally substituted, and R 5 and R 6 may bond to form an aromatic ring which is optionally substituted;
ring A and ring B do not have a same substituent at the same time;
symbols * and ** represent an optical activity having an axial chirality; and
X - represents an anion. |
