(Z)- and (E)-2-Phenyl-4-benzylidene-5(4H))oxazolones as Dienophiles. Improved Selectivity by the Use of Heterogeneous Catalysts

DOI: 10.1016/0040-4020(95)00526-E

Source and publish data:

Tetrahedron p. 9217 - 9222 (1995)

Update date:2022-08-05

Topics:

Authors:

Cativiela, Carlos

Garcia, Jose I.

Mayoral, Jose A.

Pires, Elisabet

Brown, Robert

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Article abstract of DOI:10.1016/0040-4020(95)00526-E

Silica gel treated with AlEt2Cl or TiCl4 efficiently promotes the reaction of cyclopentadiene with (Z)-2-phenyl-4-benzylidene-5(4H)-oxazolone (1a) with very little Z/E isomerization.Silica gel treated with TiCl4 and ZnCl2 supported on silica gel leads to

Full text of DOI:10.1016/0040-4020(95)00526-E

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