This is not a chatroom! Think before you post, and if you still feel you need to add something more (or correct an error), use the Edit button, don't make an extra post.
Why don't you post some selective reduction methods with references which are better than the procedures from my page which you trashed in another post of yours, instead of just writing small non-informative comments here and there?
Stereochemistry of the Reduction of Tropinone to Tropine/Pseudotropine
I'll begin with posting two landmark articles on the stereoselective reduction of tropinone in high yield, the ratios between tropine/pseudotropine being anything from 2:1 to 1:9 depending on the reaction conditions. Over three dozen reducing systems were evaluated, including NaBH4/LiBH4/KBH4 (in water or alcohols), LiAlH4 (in ether or THF), Sodium in toluene or alcohols, and Al(i-PrO)3 in i-PrOH. They also equilibrate either tropine or pseudotropine using either of the two latter (reversible) systems, and measure where the equilibrium point between the alcohols lie in different solvent systems.
Reduction of Tropinone
A. H. Beckett et. al.
Chemistry and Industry, p. 663 (1957) (https://www.thevespiary.org/rhodium/Rhodium/djvu/tropinone.reduction-2.djvu)
(https://www.thevespiary.org/rhodium/Rhodium/djvu/tropinone.reduction-2.djvu)
Stereochemistry of the Reduction of Tropinone
A. H. Beckett et. al.
Tetrahedron, Vol. 6, pp. 319-330 (1959) (https://www.thevespiary.org/rhodium/Rhodium/djvu/tropinone.reduction-1.djvu)
(https://www.thevespiary.org/rhodium/Rhodium/djvu/tropinone.reduction-1.djvu)
To be able to view the DjVu files above, you first need to install LizardTech's DjVu Browser Plug-in v4.1 (http://www.lizardtech.com/download/?x=2&p=1&o=1&titl=Download%20DjVu%20Browser%20Plug-in)
(http://www.lizardtech.com/download/?x=2&p=1&o=1&titl=Download%20DjVu%20Browser%20Plug-in)
Reduction of 2-Carbomethoxytropinone to Methyl Ecgonine:
Beilstein:
H (1909) 22, 196
E I (1919) 22, 547
E II (1929) 22, 151
E III/IV 22, 2098
Other references:
Ann. Chem 434, 113
Patent DE408869 (http://l2.espacenet.com/dips/viewer?PN=DE408869&CY=gb&LG=en&DB=EPD)
J. Am. Chem. Soc. 2356 (1954)
J. Org. Chem. 1540 (1959)
Berichte 91, 453
Angewandte Chemie 68, 601