SYNTHESIS OF HYPERVALENT IODINE REAGENTS WITH DIOXYGEN
申请人:The Texas A&M University System
公开号:US20190002487A1
公开(公告)日:2019-01-03
Methods of synthesis of hypervalent iodine reagents and methods for oxidation of organic compounds are disclosed.
揭示了高价碘试剂的合成方法和有机化合物氧化的方法。
NUCLEOPHILIC FLUORINATION OF AROMATIC COMPOUNDS
申请人:Satyamurthy Nagichettiar
公开号:US20110178302A1
公开(公告)日:2011-07-21
Iodylbenzene derivatives substituted with electron donating as well as electron withdrawing groups on the aromatic ring are used as precursors in aromatic nucleophilic substitution reactions. The iodyl group (IO
2
) is regiospecifically substituted by nucleophilic fluoride to provide the corresponding fluoroaryl derivatives. No-carrier-added [F-18]fluoride ion derived from anhydrous [F-18](F/Kryptofix, [F-18]CsF or a quaternary ammonium fluoride (e.g., Me
4
NF, Et
4
NF, n-Bu
4
NF, (PhCH
2
)
4
NF) exclusively substitutes the iodyl moiety in these derivatives and provides high specific activity F-18 labeled fluoroaryl analogs. Iodyl derivatives of a benzothiazole analog and 6-iodyl-L-dopa derivatives have been synthesized as precursors and have been used in the preparation of no-carrier-added [F-18]fluorobenzothiazole as well as 6-[F-18]fluoro-L-dopa.