67619-72-1

Upstream product

• 75154-93-7 (6Z)-9,10-secocholesta-5⁽¹⁰⁾,6,8-trien-1-one 
• 67632-48-8 (1R,6R)-1-hydroxy-9,10-secocholesta-5⁽¹⁰⁾,6,7-triene 
• 75154-98-2 (1R,6Z)-1-hydroxy-9,10-secocholesta-5⁽¹⁰⁾,6,8-triene 
• 1193-55-1 2-methylcyclohexane-1,3-dione 
• 67-97-0 vitamin D₃ 
• 56671-84-2 3-iodo-2-methylcyclohexenone 
• 66251-18-1 Grundmann's ketone 
• 74398-25-7 de-A,B-8α-ethynyl-8β-cholestanol benzoate 
• 74398-26-8 (6R)-9,10-secocholesta-5⁽¹⁰⁾,6,7-triene-1-one 
• 67619-70-9 2-methyl-3-iodocyclohex-2-en-1-ol 
• 67619-75-4 de-A,B-8α-ethynyl-8β-cholestanol 
• 67619-71-0 1-tert-butyldimethylsiloxy-2-methyl-3-iodocyclohex-2-ene 
• 143660-74-6 ⁽³⁾-tert-butyldimethyl(oct-1-en-7-yn-3-yloxy)silane 
• 193622-64-9 tert-Butyl-{3-[1-iodo-meth-(Z)-ylidene]-2-methylene-cyclohexyloxy}-dimethyl-silane 

Downstream Products

• 75154-98-2 (1R,6Z)-1-hydroxy-9,10-secocholesta-5⁽¹⁰⁾,6,8-triene 

Relevant academic research and scientific papers

Alkenylzinc-Mediated Approach to the Vitamin D Skeleton. Application to the Synthesis of 6-Methyl Analogs of Vitamin and Previtamin D

Palladium-catalyzed cross-coupling of alkenylzinc reagents, bearing the C,D-ring/side chain portion, and (Z)-1-iodo-1,3-bis-exocyclic dienes (as A-ring precursors), provides a mild, convergent entry to the vitamin D skeleton, that is suitable for the synt

A mild palladium-catalysed convergent approach to the vitamin D skeleton

Palladium-catalysed cross-coupling of (Z)-1-iodo-1,3-bis-exocyclic dienes and alkenyl-zinc reagents bearing the C,D-ring/side chain portion provides a new efficient entry to the tricyclic system of vitamin D.

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