TY - GEN AU - Rigby,J H AU - Heap,C R AU - Warshakoon,N C AU - Heeg,M J TI - A novel chromium(0)-promoted four-component cycloaddition reaction SN - 1523-7060 PY - 2000///0706 KW - Alkynes KW - chemistry KW - Chlormadinone Acetate KW - chemical synthesis KW - Chromium KW - Contraceptives, Oral, Combined KW - Cyclization KW - Mestranol KW - Organometallic Compounds KW - Photochemistry N1 - Publication Type: Journal Article; Research Support, U.S. Gov't, P.H.S UR - https://doi.org/10.1021/ol990687w ER -