研究了自由基反应中膦酸酯基团 β 消除的可能性。首次观察到从烷氧基自由基轻松β消除膦酸酯基团,而未发生从氨基和烷基自由基β消除膦酸酯基团。基于我们的发现,研究了使用酰基膦酸酯作为羰基自由基受体。在苯中的六甲基二锡存在下,在 300 nm 处,酰基膦酸酯的自由基环化,以高产率获得 ac yclopentanone 或环己酮衍生物,而不会形成直接还原产物。该反应可以在类似条件下在催化量的六甲基二锡(0.2当量)存在下进行。此外,烷基膦酰硫代甲酸酯基团可以作为烷基硫代羰基基团等价的自由基受体,为硫代内酯的合成提供了方便的途径。简历 : 在一个 etudie la possibilite d'une 消除 β d'un groupe phosphonate au cours de reactor radicalaires。在观察上,pour la Premiere fois une 消除 β facile
NONAQUEOUS ELECTROLYTE SOLUTION, ELECTRICITY STORAGE DEVICE USING SAME, AND PHOSPHONOFORMIC ACID COMPOUND USED IN SAME
申请人:UBE INDUSTRIES, LTD
公开号:US20160315351A1
公开(公告)日:2016-10-27
The present invention provides a nonaqueous electrolytic solution capable of suppressing worsening of heat stability of a negative electrode and improving safety of an energy storage device while maintaining high-load charging and discharging cycle properties at a high temperature, an energy storage device using the same, and a phosphonoformic acid compound to be used for the same. The nonaqueous electrolytic solution having an electrolyte salt dissolved in a nonaqueous solvent contains 0.001 to 5% by mass of at least one selected from a phosphonoformic acid compound having at least one carbon-carbon unsaturated bond, which is represented by the following general formula (I), and a phosphonoformic acid compound having a carbon-carbon unsaturated bond or two phosphonocarbonyl groups, which is represented by the following general formula (II).
In the formula (I), each of R
1
to R
3
is an aliphatic organic group, provided that at least one of R
1
to R
3
represents a carbon-carbon unsaturated bond-containing aliphatic organic group.
In the formula (II), each of R
4
and R
5
represents an alkyl group, a cycloalkyl group, or an aryl group, and R
4
and R
5
may be bonded to each other to form a ring structure. m represents 1 or 2; when m is 1, then R
6
represents an aryl group; when m is 2, then R
6
represents an alkylene group, an alkenylene group, or an alkynylene group; and a part of hydrogen atoms of R
4
to R
6
may be substituted with a halogen atom.