Patent ID: 8207337

Claim:
A reagent for organic synthesis reaction comprising at least one among organic triol borate salts represented by the following general formulae (I) to (III) and (XVI): wherein, R 1 represents alkyl group, alkenyl group, alkynyl group, aryl group or aralkyl group; R 2 represents alkyl group, alkenyl group, alkynyl group, aryl group, aralkyl group or heterocyclic group, which may have a substituent group, or hydrogen atom; R 4 represents a divalent aromatic hydrocarbon group or heterocyclic group, which may have a substituent group; m + represents alkaline metal ion, phosphonium ion, or ammonium ion represented by general formula (IV): wherein, R 3 represents an alkyl group); M 2+ represents an alkaline earth metal ion, X represents halogen or alkoxide; Y represents alkaline metal ion, phosphonium ion, ammonium ion represented by general formula (IV), or the group represented by general formula (XVII): MX ⊕ (XVII) wherein, M represents an alkaline earth metal, X represents halogen atom or alkoxide; A represents a methylene group which may have a substituent group; each n represents an integer of 1 to 10 and may be the same or the different, respectively.