start-ver=1.4
cd-journal=joma
no-vol=21
cd-vols=
no-issue=8
article-no=
start-page=2668
end-page=2672
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2019
dt-pub=20190404
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Chromium-Mediated Stannylcyclopropanation of Alkenes with (Diiodomethyl)stannanes
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=A stannyl-group-substituted gem-dichromiomethane species, generated in situ from CrCl2, TMEDA, and tributyl(diiodomethyl)stannane, worked as an efficient stannylcarbene equivalent to promote cyclopropanation of alkenes. The reaction provided synthetically useful stannylcyclopropanes directly from commercially available unactivated alkenes without using potentially flammable alkylzinc and diazo compounds. Structural characterization of stannyl- and germyl-group-substituted gem-dichromiomethane complexes and the effect of group 14 elements containing substituents for cyclopropanation are also described.
en-copyright=
kn-copyright=

en-aut-name=MuraiMasahito
en-aut-sei=Murai
en-aut-mei=Masahito
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=

en-aut-name=TaniguchiRyuji 
en-aut-sei=Taniguchi
en-aut-mei=Ryuji 
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=

en-aut-name=MizutaChisato
en-aut-sei=Mizuta
en-aut-mei=Chisato
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=

en-aut-name=TakaiKazuhiko
en-aut-sei=Takai
en-aut-mei=Kazuhiko
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=4
ORCID=

affil-num=1
en-affil=Graduate School of Natural Science and Technology, Okayama University
kn-affil=

affil-num=2
en-affil=Graduate School of Natural Science and Technology, Okayama University
kn-affil=

affil-num=3
en-affil=Graduate School of Natural Science and Technology, Okayama University
kn-affil=

affil-num=4
en-affil=Graduate School of Natural Science and Technology, Okayama University
kn-affil=
en-keyword=chromium(II)-mediate synthesis
kn-keyword=chromium(II)-mediate synthesis
en-keyword=stereoselective-synthesis
kn-keyword=stereoselective-synthesis
en-keyword=e-alkenylstannanes
kn-keyword=e-alkenylstannanes
en-keyword=redox system
kn-keyword=redox system
en-keyword=cyclopropanation
kn-keyword=cyclopropanation
en-keyword=aldehydes
kn-keyword=aldehydes
en-keyword=reagents
kn-keyword=reagents
en-keyword=cyclopropenes
kn-keyword=cyclopropenes
en-keyword=reactivity
kn-keyword=reactivity
en-keyword=reduction
kn-keyword=reduction
END