A SHORT EFFICIENT SYNTHESIS OF 19-NORANDROST-4-ENE-3,17-DIONE

[1] REACTION OF MIXED CARBOXYLIC ANHYDRIDES WITH GRIGNARD-REAGENTS - USEFUL METHOD FOR PREPARATION OF KETONES [J]. CHEMISTRY LETTERS, 1974, (07) : 663 - 666

[2] Biggs C.B., 1977, US Patent, Patent No. 4062729

[3] OPTICALLY SPECIFIC SYNTHESIS OF ESTRONE AND 19-NORSTEROIDS FROM 2,6-LUTIDINE [J]. JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1976, 98 (16) : 4975 - 4983

[4] NOMINE G, 1968, B SOC CHIM FR, P3664

[5] PONARAS AA, 1976, TETRAHEDRON LETT, P3105

[6] PROSTMARECHAL J, 1969, Patent No. 1903565

[7] 568 I ORG CHEM SYNT

[1] REACTION OF MIXED CARBOXYLIC ANHYDRIDES WITH GRIGNARD-REAGENTS - USEFUL METHOD FOR PREPARATION OF KETONES [J]. CHEMISTRY LETTERS, 1974, (07) : 663 - 666

[2] Biggs C.B., 1977, US Patent, Patent No. 4062729

[3] OPTICALLY SPECIFIC SYNTHESIS OF ESTRONE AND 19-NORSTEROIDS FROM 2,6-LUTIDINE [J]. JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1976, 98 (16) : 4975 - 4983

[4] NOMINE G, 1968, B SOC CHIM FR, P3664

[5] PONARAS AA, 1976, TETRAHEDRON LETT, P3105

[6] PROSTMARECHAL J, 1969, Patent No. 1903565

[7] 568 I ORG CHEM SYNT