TY - JOUR
T1 - Synthesis of optically active boroxazolidine, borathiazolidine and boraselenazolidine and their N-borane adducts from the corresponding 2- imino-heteroazolidines
AU - Cruz, Alejandro
AU - Macías-Mendoza, Diana
AU - Barragan-Rodríguez, Efraín
AU - Tlahuext, Hugo
AU - Nöth, Heinrich
AU - Contreras, Rosalinda
N1 - Funding Information:
We are grateful for financial support of CONACyT-Mexico (Proyecto 1346-PE9507 Scholarship).
PY - 1997/12/11
Y1 - 1997/12/11
N2 - The synthesis from the corresponding 2-imino-heteroazolidines of optically active boroxazolidine, borathiazolidine and boraselenazolidine, derived from ephedrine, and their N-borane adducts is reported. The X-ray diffraction structures of (4R,5R)-(+)-3,4-dimethyl-5-phenyl-2-iminium thiazolidine thiocyanate 9b, (4R,5R)-(+)-3,4-dimethyl-5-phenyl-2-iminium- selenazolidine selenocyanate 9c, (4R,5R)-(+)-3,4-dimethyl-5-phenyl-2- iminoselenazolidine 10b and (4R,5R)-(+)-3,4-dimethyl-5-phenyl-2- boraselenazolidine dimer 15 were elucidated. Compounds were also studied by 1H, 13C and 77Se NMR.
AB - The synthesis from the corresponding 2-imino-heteroazolidines of optically active boroxazolidine, borathiazolidine and boraselenazolidine, derived from ephedrine, and their N-borane adducts is reported. The X-ray diffraction structures of (4R,5R)-(+)-3,4-dimethyl-5-phenyl-2-iminium thiazolidine thiocyanate 9b, (4R,5R)-(+)-3,4-dimethyl-5-phenyl-2-iminium- selenazolidine selenocyanate 9c, (4R,5R)-(+)-3,4-dimethyl-5-phenyl-2- iminoselenazolidine 10b and (4R,5R)-(+)-3,4-dimethyl-5-phenyl-2- boraselenazolidine dimer 15 were elucidated. Compounds were also studied by 1H, 13C and 77Se NMR.
UR - http://www.scopus.com/inward/record.url?scp=0344863186&partnerID=8YFLogxK
U2 - 10.1016/S0957-4166(97)00591-0
DO - 10.1016/S0957-4166(97)00591-0
M3 - Artículo
SN - 0957-4166
VL - 8
SP - 3903
EP - 3911
JO - Tetrahedron Asymmetry
JF - Tetrahedron Asymmetry
IS - 23
ER -