An organic compound with characteristics excelling in hole-injecting/transporting performance and having an electron blocking ability, a highly stable thin-film state, and excellent heat resistance is provided as material for an organic electroluminescent device of high efficiency and high durability, and the organic electroluminescent device of high efficiency and high durability is provided using this compound. The compound of a general formula (Chemical Formula 1) having a substituted acridan ring structure is used as a constituent material of at least one organic layer in the organic electroluminescent device that includes a pair of electrodes and one or more organic layers sandwiched between the pair of electrodes. ##STR00001##

Provided herein is a process for preparing triaryl organoborates of the formula 1/n K.sup.n+R.sub.3.sup.4B.sup.−—R.sup.1 (IV), where one equivalent of organoboronic ester of the formula B—R.sup.1(OR.sup.2)(OR.sup.3) (I) is initially charged together with 1/n equivalents of salt K.sup.n+ nX.sup.− (II) and 3 equivalents of metal M in a solvent or a solvent mixture S1, 3 equivalents of a haloaromatic R.sup.4—Y (III) are added, an auxiliary L and optionally a second organic solvent or solvent mixture S2 is added and the compound 1/n K.sup.n+ R.sub.3.sup.4B.sup.−—R.sup.1 (IV) is separated off with the organic phase, and to the use of these substances as co-initiator in photopolymer formulations.

Provided herein is a process for preparing triaryl organoborates proceeding from alkyl or cycloalkyl boronates in the presence of an n-valent cation 1/n K.sup.n+ to obtain organoborates of the formula 1/n K.sup.n+R.sub.3.sup.4B.sup.−—R.sup.1 (IV), where one equivalent of organoboronic ester of the formula B—R.sup.1(OR.sup.2)(OR.sup.3) (I) is initially charged together with 1/n equivalents of salt K.sup.n+ nX.sup.− (II) and 3 equivalents of metal M in a solvent or a solvent mixture, 3 equivalents of a haloaromatic R.sup.4—Y (III) are added, and optionally a second organic solvent water is added and the compound 1/n K.sup.n+ R.sub.2.sup.4B.sup.−—R.sup.1 (IV) is separated off with the organic phase, and to the use of these substances as co-initiator in photopolymer formulations.

Exemplary olfactory delivery scaffolds may include 1) an olfactory targeting component, stimulant, or odorant that is recognized by the olfactory nerves via, for example, a smell response, 2) a molecule with biological activity, a therapeutic component, and/or drug (sometimes collectively referred to herein as a therapeutic component), and 3) a linker component that links the olfactory targeting component and therapeutic component together. The olfactory delivery scaffolds may be used to deliver a molecule with biological activity and/or a therapeutic component to a subject's neurological system through the olfactory pathway and pharmaceutical compositions useful in the treatment of neurological and/or neurodegenerative diseases.