我们开发了一种用于 1e 自由基过程的羧酸的化学选择性催化活化。各种羧酸的α-氧化,在自由基条件下优先进行不需要的脱羧,在优化条件下有效地进行。即使在更多酸性羰基化合物的存在下,也实现了羧酸的化学选择性烯醇化。广泛的机理研究表明,来自 4Å 分子筛的铁物质和碱金属离子的协同作用大大促进了烯醇化。首次实现了未保护羧酸的催化烯醇化,而无需外部添加化学计量的布朗斯台德碱。形成的具有氧化还原活性的异双金属烯二醇有效地与自由基 TEMPO 偶联,
THERMOELECTRIC CONVERSION MATERIAL, AND THERMOELECTRIC CONVERSION ELEMENT PREPARED THEREWITH
申请人:Toyo Ink SC Holdings Co., Ltd.
公开号:EP3902021A1
公开(公告)日:2021-10-27
A thermoelectric conversion material containing an electrically conductive material (A) and an organic compound (B) that are in a relationship satisfying the following formula (1): 0 eV ≤ | (HOMO of the organic compound (B)) - (HOMO of the electrically conductive material (A)) | ≤ 1.64 eV.
Zacharias; Case, Journal of Organic Chemistry, 1962, vol. 27, p. 3878,3880
作者:Zacharias、Case
DOI:——
日期:——
METHOD FOR PRODUCING 3,3-DIMETHYL-2-(1-PROPENYL) CYCLOPROPANE CARBOXYLATE
申请人:Sumitomo Chemical Company, Limited
公开号:EP1681282B1
公开(公告)日:2013-01-23
Method for producing 3, 3-dimethyl-2-(1-propenyl) cyclopropanecarboxylate
申请人:Hagiya Koji
公开号:US20070078278A1
公开(公告)日:2007-04-05
A method for producing 3,3-dimethyl-2-(1-propenyl)cyclopropanecarboxylate represented by the formula (2):
wherein R
1
represent an optionally substituted alkyl group, an optionally substituted aryl group or an optionally substituted aralkyl group, which comprises a 3,3-dimethyl-2-(2-carboxy-1-propenyl)cyclopropanecarboxylate represented by the formula (1):
wherein R
1
is as described above, is brought into contact with a copper compound and a nitrogen-containing aromatic compound, is provided.