The first fluorescent chemical traps for (1)O(2) have been developed. DPAXs react specifically with (1)O(2) to yield the corresponding endoperoxides, DPAX-EPs (see scheme; X = H, Cl, F). DPAXs scarcely fluoresce, while DPAX-EPs are strongly fluorescent. Since the fluorescence of these probes is unaffected by H(2)O(2), superoxide, and nitric oxide, they are useful for the selective detection of (1)O(2) in biological systems.
制备了两个水溶性1 O 2捕集阱:1,3-二苯基异苯并呋喃-5-钾-5,6-二羧酸☐酯和9,10-二苯基蒽-2,3,6,7-四羧酸☐酯的高产率制备了一种新的描述了对蒽骨架的访问。该合成的关键步骤包括1,3-二苯基异苯并呋喃与二甲基7-氧杂双环[2.2.1] -5-庚烯-2,3-二甲叉基羧酸酯之间的环加成;这样得到的加合物经过脱水得到相应的蒽。
Two water soluble1O2 traps: dipotassium 1,3 - diphenylisobenzofuran - 5,6 - dicar☐ylate and tetrapotassium 9,10 - diphenylanthracene - 2,3,6,7 - tetracar☐ylate have been prepared in good yields and a new access to the anthracene skeleton is described. The key-step of this synthesis consists of a cycloaddition between 1,3 - diphenylisobenzofurans and dimethyl 7 - oxabicyclo[2.2.1] - 5 - heptene - 2
制备了两个水溶性1 O 2捕集阱:1,3-二苯基异苯并呋喃-5-钾-5,6-二羧酸☐酯和9,10-二苯基蒽-2,3,6,7-四羧酸☐酯的高产率制备了一种新的描述了对蒽骨架的访问。该合成的关键步骤包括1,3-二苯基异苯并呋喃与二甲基7-氧杂双环[2.2.1] -5-庚烯-2,3-二甲叉基羧酸酯之间的环加成;这样得到的加合物经过脱水得到相应的蒽。
SCHMITZ, C.;AUBRY, J. M.;RIGAUDY, J., TETRAHEDRON, 1982, 38, N 10, 1425-1430
The first fluorescent chemical traps for (1)O(2) have been developed. DPAXs react specifically with (1)O(2) to yield the corresponding endoperoxides, DPAX-EPs (see scheme; X = H, Cl, F). DPAXs scarcely fluoresce, while DPAX-EPs are strongly fluorescent. Since the fluorescence of these probes is unaffected by H(2)O(2), superoxide, and nitric oxide, they are useful for the selective detection of (1)O(2) in biological systems.