Functionalized chloroenamines in aminocyclopropane synthesis IV A synthesis for bicyclic lactams from carbamoylated chloroenamines - the result of a tandem ring contraction - cyclization process
N-tosylcarbamoylated chloroenamines 6b-d with sodium cyanide in acetonitrile gave [n.3.0] bicyclic lactams 8b-d instead of the expected [n.1.0] bicyclic compounds of type 7. X-ray structure analyses of 8b-d established an uniform cis-anellation of the pyrrolidone system and an uniform exo-position of the morpholino moiety. A similar formation of a lactam was observed upon the reaction of the carbamoylated chloroenamines
ERNST B.; GANTER C., HELV. CHIM. ACTA, 1978, 61, NO 5, 1775-1777
作者:ERNST B.、 GANTER C.
DOI:——
日期:——
VILSMAIER E.; TROEGER W.; SPRUEGEL W.; GAGEL K., CHEM. BER., 1979, 112, NO 8, 2997-3006
作者:VILSMAIER E.、 TROEGER W.、 SPRUEGEL W.、 GAGEL K.
DOI:——
日期:——
Tricyclo[4.2.2.22,5] dodecane and Tricyclo [4.2.2.12,5]undecane. Preliminary communication
作者:Beat Ernst、Camille Ganter
DOI:10.1002/hlca.19780610524
日期:1978.7.12
A synthesis of tricyclo [4.2.2.22,5]dodecane (19), a novel tricyclic C12H20 compound, is described. The key intermediate ketone 13 was prepared either from the C10-photodimer 1 of cyclopentadienone or the C11-cycloaddition products 11 and 12. 13 was also transformed to tricyclo [4.2.2.12,5]undecane (8).
描述了新的三环C 12 H 20化合物三环[4.2.2.2 2,5 ]十二烷(19)的合成。关键中间体酮13是由环戊二烯酮的C 10-光二聚体1或C 11-环加成产物11和12制备的。13也被转化为三环[4.2.2.1 2,5 ]十一烷(8)。