English Dictionary

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

The di-pimethane rearrangement proceeds under UV irradiation to convert the 1,4-diene into an ene-substituted cyclopropane with high stereospecificity.

紫外線照射下で、二つのπ系が飽和炭素で隔てられた分子が光化学的に再配列して、1,4-ジエンをエン置換シクロプロパンに高い立体選択性で変換する。

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.

di-pimethane rearrangements （ plural ）