+++Synthesis большое спасибо ddtadd

[KVS]

DOI:

http://dx.doi.org/10.1055/s-2003-39408

Synthesis, 2003, N. 8, P. 1286-1291
Giancarlo Cravotto, Gian Mario Nano, Giovanni Palmisano, Silvia Tagliapietra
The reactivity of 4-hydroxycoumarin under heterogeneous high-Intensity sonochemical conditions

DOI:

http://dx.doi.org/10.1055/s-1990-26882

Synthesis, 1990, N. 5, P. 387-388
Rita Laschober, Thomas Kappe
A new and efficient synthesis of coumestan and coumestrol

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