最終更新日：2025/11/23
A photochemical reaction of a molecular entity comprising two p-systems, separated by a saturated carbon atom (a 1,4-diene or an allyl-substituted aromatic analog), to form an ene- (or aryl-) substituted cyclopropane. The rearrangement formally amounts to a 1,2 shift of one ene group (in the diene) or the aryl group (in the allyl-aromatic analog) and ‘bond formation’ between the lateral carbons of the non-migrating moiety.
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di-pimethane rearrangement
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元となった辞書の項目
di-pimethane rearrangement
名詞
A
photochemical
reaction
of
a
molecular
entity
comprising
two
p-systems,
separated
by
a
saturated
carbon
atom
(a
1,4-diene
or
an
allyl-substituted
aromatic
analog),
to
form
an
ene-
(or
aryl-)
substituted
cyclopropane.
The
rearrangement
formally
amounts
to
a
1,2
shift
of
one
ene
group
(in
the
diene)
or
the
aryl
group
(in
the
allyl-aromatic
analog)
and
‘bond
formation’
between
the
lateral
carbons
of
the
non-migrating
moiety.
日本語の意味
光化学反応において、2つのπ系（パラ系）が飽和炭素で分離された分子（1,4-ジエンまたはアリル置換芳香族類似体）において、エネ基またはアリール基の1,2-転位と、非移動部分の側炭素同士の結合形成により、エネ（またはアリール）置換環状プロペン（シクロプロパン）を生成する再編成反応
意味（1）
A
photochemical
reaction
of
a
molecular
entity
comprising
two
p-systems,
separated
by
a
saturated
carbon
atom
(a
1,4-diene
or
an
allyl-substituted
aromatic
analog),
to
form
an
ene-
(or
aryl-)
substituted
cyclopropane.
The
rearrangement
formally
amounts
to
a
1,2
shift
of
one
ene
group
(in
the
diene)
or
the
aryl
group
(in
the
allyl-aromatic
analog)
and
‘bond
formation’
between
the
lateral
carbons
of
the
non-migrating
moiety.
（ plural ）
