儒09卦圖《:、譽笹蝋!:蝋[ aucts in good yields. synfacts paul knochel, chnstoph samann 9(7),...

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Page 1: 儒09卦圖《:、譽笹蝋!:蝋[ Aucts in good yields. SYNFACTS Paul Knochel, Chnstoph Samann 9(7), 0775 Published P06S13SF 2013 e THIEME STVTTGART NEW YORK Comment: The reaction

Cafe回⑥ryY-KUNINOBU.*T-IWANAGAoT-OMURApK-TAKAI*(OKAYAMAUNIVERSITYANDTHE

UNIVERSITYOrTOKYQJAPAN)

Palladium-Qktalyzedo諭o-SeiectiveC-HBoEylationof2-PhenylpyridmeandltsDerivatives薊tRoomTmnpemtur已

且"geMKC?ie腕嶬mfEti201aJ2,“31-4434

Me2aK-WIed胞廿②H

SynthesIs

K⑧ywcr衝&

Pd-Catalyzedortho-SelectiveC-HBorylation

of2-Pheny1pyridineDerivatives

orrho・seIectiveC-H

borylati、刑

PITenylpWidmederiVatlveS

paHadmm

r、

薊C〔i7鰍′A

upto9796yleld

儒09卦圖《:、譽笹蝋!:蝋[、

〈1equiv)(1.4equiv)

X=・N

Y=QO

R=40Me鞭4.CF⑧02-Me`cc両dei.i量鐘壼aromaMcs

SGI⑨Cted己Xa

局C

A83%yleld

-人一|人

!'

41%ylel仕 93%yield

法 法50%yleld77%yjeld 19%yieId

c〔震八89%yleld

lハ’97%yield 27%yieId

Significance:AnelficientPd-catalyzedborylation

of2-pheny}pyIidinederivativeshasbeendis-

CIC雲蓮.Theregiose{ectMty訂i尊塞fromLewis

acid-baseinteractiorlbetweenthenitrogenand

boron重tDrTis,fumishingthecorrespondingprod-

uctsingoodyields

sYNFAc加sccnMbuto麺:P31J1ZE二cEhE1ChristophS語台詫,Synfn亡循2013,,(7)?O775PubHshedmIine:17-062013

DOI:10-1055/3-0033-1338900:馳殴No.:PO6813SrDP。。■□■巳。■■。■■B■■bdb■凸■■印可凸■B■G■BOO■ウ咀凸■■5口■■■■■凸■■■■00.■■-■わ■●凸■q●、■■中▲で□守らP。■■qDSbo■、■■■企靱。ごSPB■▲■。①P上。■BUS■し■■■■■ロム■L可gc

ZOX3CTHIEMESTUTTGART・NEWYORK

Comme8nt:Thereactionproceedsatroomtem‐

pe虚turebutcarlalsobeconductedwithoutthe

paMadiumcatalystathighertemperatures・Fw-

thenTldc1theauthorshaveshownthatthereac-

tioncanalsobereadilyperformedong旧mscale

775