Producción Científica Profesorado

Diastereoselective Synthesis of Spiro-?-lactams via Staudinger Reaction



Alvarez Hernandez, Alejandro

2007

Susana Rojas-Lima, Lidia Santillán-Sid, Heraclio López-Ruiz and Alejandro Alvarez-Hernández. Diastereoselective Synthesis of Spiro-?-Lactams via Staudinger Reaction. Heterocycles, 2007, 71, 531-542. ISSN 1881-0942. The Japan Institute of Heterocyclic Chemistry. Japón.


Abstract


In this work, eleven new spiro-?-lactams have been prepared using the Staudinger reaction of isomaleimides (1a-d) and carboxylic acids (chloroacetic acid, (-)-menthoxyacetic acid (7) and an oxazolidinone derived acid (10)) in the presence of triphosgene under mild condition. All reactions have been shown to be stereoselective. The new stereogenic centers were assigned by X-ray diffraction.






Artículos relacionados

3-Benzoyl-2-isopropyl-4-alkyloxazolidin-5-ones as Efficient and Inexpensive Sources of Enantiopure ?...

Structural studies of spiroarsoranes derived from 2-aminophenols

Synthesis and Study of Isomeric Benzo[1,4]oxazines and Benzothiazolines by NMR Spectroscopy and X-Ra...

Diastereomeric C-glycosyloxanthrones from picramnia antidesma

Bis(acetylsalicylato-j2O,O00)diaquacadmium(II)

Stereoselective addition of allylmagnesium chloride to the CN bond of [4.3.0] boron heterobicycles

Phenylmethyl 2,3,4-tri-O-acetyl--D-fucopyranoside

Phenylboronic acid catalyzed-cyanide promoted, one-pot synthesis of 2-(2-hydroxyphenyl)benzoxazole d...

Structure-Activity Relationships for Inhibition of Cysteine Protease Activity and Development of Pla...

Preparation of Seven- and Eight-Membered Boron Heterocycles from Different Salen Ligands and Arylbor...