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Synthesis Reference(s) for 4-pyridyl boric acid
4-Pyridyl boronic acid
Pyridine-2-boronic acid is used as a key starting material for the formation of pyridyl boronic ester such as pyridine-2-boronic acid dimethyl ester. Furthermore, the dimethyl ester reacts with bromquinoline to prepare the 2-pyridyl derivative of quinoline.
Procédé de préparation de pyridine-2 esters d' acides boroniques
ColdSpring developed over 200 boronic acids and its derivatives in the past 3 years, and maintains stocks of pyridine series, pyrimidine series, thiohene series, quinoline series and indole series at present.
Production of 2-pyridineboronic acid ester compounds (I) comprises reacting a 2-halopyridine compound (II) with a metallating reagent to form an organometallic compound (III), reacting (III) with a borate ester compound (IV) to form a complex salt (V), and reacting (V) with a proton source. Production of 2-pyridineboronic acid ester compounds of formula (I) comprises reacting a 2-halopyridine compound of formula (II) with a metallating reagent to form an organometallic compound of formula (III), reacting (III) with a borate ester compound of formula R1>-O-B(OR2>)OR3> (IV) to form a complex salt of formula (V), and reacting (V) with a proton source. [Image] X : H, Cl, Br, I or F; M : Li, MgCl or MgBr; R : H, 1-20C alkyl, 1-20C alkoxy, optionally substituted 6-12C aryl, heteroaryl, optionally substituted 3-8C cycloalkyl, heteroaryloxy, aryloxy, dialkylamino, diarylamino, alkylthio, arylthio, CN, ester, acetal, mono- or dithioacetal or aminal, and R1>-R3>1-20C alkyl or alkoxy, cycloalkyl, alkenyl, alkynyl, heteroaryl or optionally substituted 6-12C aryl, or two of R1>-R3>a ring.
Pyridine-3-boronic acid | C5H6BNO2 - PubChem
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