212896-00-9Relevant academic research and scientific papers
Asymmetric Synthesis of Pentono- and 6-Deoxyhexono-δ-lactams via Hetero-Diels-Alder Reactions with Nitroso Dienophile
Defoin, Albert,Sarazin, Herve,Sifferlen, Thierry,Strehler, Christiane,Streith, Jacques
, p. 1417 - 1428 (1998)
Asymmetric Diels-Alder reaction of the pentadienoic and hexadienoic acids 2a,b with the chiral chloronitroso derivative 3 gave the primary adducts 4a,b with good-to-excellent enantioselectivity. Subsequent cis- or trans-dihydroxylation and hydrogenolytic cleavage of the N-O bond led to the 5-amino-5-deoxypentono-δ-lactams 13a, 14, 15a, and 16 in the D-ribose, L-arabinose, D-xylose, and L-lyxose series, respectively, and to the 5-amino-5,6-dideoxyhexono-δ-lactams 13b and 15b in the D-allose and D-glucose series, respectively.
Novel fragmentation of 3-lithio-3,6-dihydro-1,2-oxazines: Synthesis of 2,5-dihydro-2-furanylamines
Desai,Doty,Stephens,Brighty
, p. 961 - 962 (2007/10/02)
N-Cbz or N-Boc protected 3,6-dihydro-1,2-oxazines 1 on treatment with LDA at -78°C undergo a novel rearrangement to provide synthetically useful N-Cbz or N-Boc protected dihydro-2-furanylamines 2.
