| abstract |
(57) [Summary]nSOLUTION: Formula (I) [R 1 Is a chain of carbon atoms Alkyl group, chain alkenyl group, chain alkynyl group However, these groups are alkoxy groups having 1 to 3 carbon atoms or It may be substituted with a halogen atom to form an ether bond. May be included; A, E, and J are each independently pyrimidi Ring, benzene ring, naphthalene ring, etc .; j, k, l and m each independently represent 0 or 1, and n is an integer of 0 to 2. Indicates the number; G 1 Is represented by -O-,-S-,-CO-,-COO-,-OCO-,-SCO- A group selected from the group represented by G; 2 Indicates -O-,-S- You. ], A terpene derivative represented by Objects and liquid crystal elements.n[Effect] This terpene derivative is physically and chemically stable. A liquid crystal group having a low viscosity and composed of this and another liquid crystal compound The product is Sc in a wide temperature range. * Phase, with low viscosity Shows high-speed response to applied voltage and memory characteristics The threshold value of is improved and a sufficiently high contrast ratio is exhibited.n[Chemical 1] |