74398-25-7

Upstream product

• 74398-28-0 (1R,7aR)-1-(1,5-Dimethyl-hexyl)-7a-methyl-4-vinylidene-octahydro-indene 
• 67-97-0 vitamin D₃ 
• 66251-18-1 Grundmann's ketone 
• 67619-75-4 (1R,4S,7aR)-1-(1,5-Dimethyl-hexyl)-4-ethynyl-7a-methyl-octahydro-inden-4-ol 
• 98-88-4 benzoyl chloride 
• 67619-75-4 de-A,B-8α-ethynyl-8β-cholestanol 
• 67619-75-4 (1R,4R,7aR)-1-(1,5-Dimethyl-hexyl)-4-ethynyl-7a-methyl-octahydro-inden-4-ol 

Downstream Products

• 53954-32-8 vitamin D₃ 
• 67619-72-1 (1R)-3-deoxy-1-hydroxy-vitamin D₃ 
• 75154-97-1 (1S,6Z)-1-hydroxy-9,10-secocholesta-5⁽¹⁰⁾,6,8-triene 
• 67619-73-2 (1S,10S)-(5Z,7Z)-1-hydroxy-9,10-secocholesta-5,7,14-triene 
• 67619-74-3 (1R,10S)-(5Z,7Z)-1-hydroxy-9,10-secocholesta-5,7,14-triene 
• 75154-96-0 (1S,6Z)-1-Hydroxy-9,10-secocholesta-5⁽¹⁰⁾,6,8-⁽¹⁴⁾-triene 
• 75154-95-9 (1R,6Z)-1-Hydroxy-9,10-secocholesta-5⁽¹⁰⁾,6,8-⁽¹⁴⁾-triene 
• 67672-93-9 (1S,10R)-(5Z,7Z)-1-hydroxy-9,10-secocholesta-5,7,14-triene 
• 67670-81-9 (1R,10R)-(5Z,7Z)-1-hydroxy-9,10-secocholesta-5,7,14-triene 
• 67632-48-8 (1R,6R)-1-hydroxy-9,10-secocholesta-5⁽¹⁰⁾,6,7-triene 
• 67670-78-4 (1S,6R)-1-hydroxy-9,10-secocholesta-5⁽¹⁰⁾,6,7-triene 
• 74398-20-2 (1R,6R)-1-Hydroxy-3,3-dimethyl-9,10-secocholesta-5⁽¹⁰⁾,6,7-triene 
• 74398-21-3 (1S,6R)-1-Hydroxy-3,3-dimethyl-9,10-secocholesta-5⁽¹⁰⁾,6,7-triene 

Relevant academic research and scientific papers

ON THE LITHIUM DIMETHYLCUPRATE INDUCED CONVERSION OF PROPARGYLIC ESTERS INTO ALLENES USING A STEROIDAL C/D FRAGMENT DERIVED FROM VITAMIN D3 AS A STEREOCHEMICAL PROBE.

The reactions of (CH3)2CuLi with various C-8 epimeric propargylic esters derived from Grundmann's ketone, a C/D steroid fragment originating from vitamin D3, lead to the corresponding allenes, the stereochemistry of which indicate a preferred a

Studies on Vitamin D (Calciferol) and Its Analogues. 18. The Vinylallene Approach to the 1-Hydroxyvitamin D System. New Sigmatropic Reactions in the Vitamin D Series

The thermally induced -sigmatropic hydrogen shift of the diastereomeric vitamin D type vinylallenols 6a (1R,6R), 6b (1R,6S), 7a (1S,6S) and vinylallenols 5a (6R) and 5b (6S) were studied.The 1S,6S (7b) and 1R,6R(6a) alcohols afforded ca. 60percent yi