+++Tetrahedron n sythesis.....@eFo ....thank u

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Hi, please get me following article.............thank you dear

1
Novel syntheses of the carbapenem key intermediates, (3R,4R)-4-acetoxy-3-[(R)-1-(t-butyldimethylsilyloxy)ethyl]-2-azetidinone and (3S,4R)-3-[(R)-1-(t-butyldimethylsilyloxy)ethyl]-4-carboxymethyl-2-azetidinone, from (S)-ethyl lactate
Yoshio Ito, Yuko Kobayashi, Takeo Kawabata, Mitsuru Takase, Shiro Terashima
Tetrahedron,
Volume 45, Issue 18, 1989, Pages 5767-5790

Код: Выделить всё

http://dx.doi.org/10.1016/S0040-4020(01)89105-5

2,
Simple and Efficient Preparation of Enantiopure Alkyl α-Hydroxyalkyl Ketones
Mònica Ferreró*, Marta Galobardes, Ricardo Martín, Tomàs Montes, Pedro Romea, Roser Rovira, Fèlix Urpí, Jaume Vilarrasa
Synthesis
2000(11): 1608-1614

Код: Выделить всё

http://dx.doi.org/10.1055/s-2000-7611 

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