TBN as Organic Redox Cocatalyst for Oxidative Tiffeneau-Demjanov-Type Rearrangement Using O as Sole Oxidant.

The Tiffeneau-Demjanov-type rearrangement is a ring-expansion reaction involving the cationic rearrangement of cyclic alcohols. The carbocation intermediates can be generated in situ via various means, including Wacker oxidation. In near recent reports on the reinvestiagtions by Wahl et al.

[Optimization of matrix formulation of effective parts cataplasm of Pogostemon cablin by uniform design].

Objective: To optimize the matrix formulation of the effective part Cataplasm of Pogostemon Cablin.

Method: The optimal preparation prescription was selected by U17 (17(11)) uniform design,and the tacking strength, cohesive strength and transdermal speed constant were used as test indexes. The equations of three test indexes were established by SPSS.