Abstract: This invention relates to tetraphenylmethane-based oxadiazole molecules that act as electron transporting materials to be used in electroluminescent devices. The oxadiazole compounds are of the following formula. Each variable is defined in the specification.

Abstract: This invention relates to a method of preparing a compound of formula (I): The method includes reacting one or more compounds of formula (II): in the presence of a base and a halogenating agent. In formulas (I) and (II) above, each A, independently, is aryl or heteroaryl; each n, independently, is 0–3; and each R1, independently, is C1–C10 alkyl, C3–C20 cycloalkyl, C3–C20 heterocycloalkyl, aryl, heteroaryl, halo, cyano, nitro, ORa, NRaRb, SiRaRbRc, COORa, OC(O)Ra, C(O)NRaRb, N(Ra)—C(O)Rb, or SO3Ra; wherein each of Ra, Rb, and Rc, independently, is H, C1–C10 alkyl, C3–C20 cycloalkyl, C3–C20 heterocycloalkyl, aryl, or heteroaryl; thereby producing the compound of formula (I) in a one-pot reaction. This invention also relates to the compounds prepared by the method described above.

Abstract: This invention relates to a method of preparing a compound of formula (I): The method includes reacting one or more compounds of formula (II): in the presence of a base and a halogenating agent. In formulas (I) and (II) above, each A, independently, is aryl or heteroaryl; each n, independently, is 0-3; and each R1, independently, is C1-C10 alkyl, C3-C20 cycloalkyl, C3-C20 heterocycloalkyl, aryl, heteroaryl, halo, cyano, nitro, ORa, NRaRb, SiRaRbRc, COORa, OC(O)Ra, C(O)NRaRb, N(Ra)—C(O)Rb, or SO3Ra; wherein each of Ra, Rb, and Rc, independently, is H, C1-C10 alkyl, C3-C20 cycloalkyl, C3-C20 heterocycloalkyl, aryl, or heteroaryl; thereby producing the compound of formula (I) in a one-pot reaction. This invention also relates to the compounds prepared by the method described above.

Abstract: This invention features a compound having the formula: X is O or NR1; and each of Y and Z, independently, is in which each of R1, R2, R3, and R4, independently, is alkyl, cyclyl, heterocyclyl, aralkyl, aryl, or heteroaryl; Ar1 is aralkyl, aryl, or heteroaryl; and Ar2 is cyclyl, heterocyclyl, aralkyl, aryl, or heteroaryl; or Ar1 and Ar2 taken together is heterocyclyl, aralkyl, or heteroaryl. This compound can be used as a red light emitting material in an electro-luminescence device.

Abstract: This invention features a compound having the formula: 1

Abstract: A compound of the following formula is described.

Abstract: A process for preparing optically active allylic alcohol derivatives comprises reacting a racemic mixture of the following formula I ##STR1## wherein R is alkyl, alkenyl, or substituted or unsubstituted aryl or arylalkyl;with acetate or anhydride under the catalysis of Pseudomonase AK, PS or K-10 lipase in the presence of an organic solvent.