Tetrabutylammonium bromide (TBAB): a neutral and efficient catalyst for the synthesis of biscoumarin and 3,4-dihydropyrano[c]chromene derivatives in water and solvent-free conditions

Jitender M. Khurana, Sanjay Kumar

Tetrahedron Letters · 2009 · 305 citations · 19 references

Concepts

References

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