99885-53-7Relevant academic research and scientific papers
The 'Silyl-Stobbe condensation' - Synthesis of fulgimides
Zerrer,Simchen
, p. 922 - 924 (1992)
Organooxyalkylation of 2,5-bis(trimethylsiloxy)-1-phenylpyrrole (1) with aromatic aldehydes 2 and acetone (5) is achieved to yield 2,3-bis[aryl(trimethylsiloxy)methyl]-N-phenylsuccinimides 4 and 2-[aryl(trimethylsiloxy)methyl]-3-[1-methyl-2-(trimethylsilo
Reactions of Trialkylsilyl Trifluoromethanesulfonates, VIII. - Synthesis of O-(Trimethylsilyl)ketene O,N-Acetals, 2,5-Bis(trimethylsiloxy)pyrroles, -furans, and -thiophenes
Frick, Ulrich,Simchen, Gerhard
, p. 839 - 846 (2007/10/02)
Ketene O,N-acetals 3, 4, 6, 8 are obtained from N,N-diarylcarboxamides and N-acetylheterocycles 5, 7 by silylation with trimethylsilyl triflate (2) in the presence of triethylamine.Analogous reactions of carboxamides 9 and N-acyllactams 11 yield the keten
Two Total Syntheses of Showdomycin and Related Studies
Barrett, Anthony G. M.,Broughton, Howard B.,Attwood, Steven V.,Gunatilaka, A. A. Leslie
, p. 495 - 503 (2007/10/02)
After a series of model reactions, D-ribose (2) was reacted with 3-(triphenylphosphoranylidene)-2,5-pyrrolidinedione (8a) in THF at reflux to produce 3(E)-2(S),3(S),4(R),5-tetrahydroxy-1-pentylidene)-2,5-pyrrolidinedione (35) (75 percent).Subsequent cyclization of 35 using phenylselenyl chloride followed by hydrogen peroxide gave showdomycin (1) (13 percent) and epi-showdomycin (36) (41 percent).Using a similar strategy 2,3-O-isopropylidene-D-ribose (37b) was reacted sequentially with 1-(triphenylmethyl)-3-(triphenylphosphoranylidene)-2,5-pyrrolidinedione (8b), phenylselenyl chloride, hydrogen peroxide, and trifluoroacetic acid to give (1) (3 percent overall).
