215%20F07-E1-pp%202-6

215%20F07-E1-pp%202-6 - Remember "Lone pair-assisted...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
Remember “Lone pair-assisted ionization.” Name_______________________________ 215 F07-Exam No. 1 Page 2 I . (20 points) The following compounds are those used in our study on the enzymatic transformation of cholesterol to pregnenolone. 1) Designate in each of the boxes below the stereochemistry ( R or S ) at the indicate carbon center and 2) provide in each of the boxes provided the formal oxidation number of each of the indicated carbon atoms in pregnenolone. H H H HO O H H H H HO H OH H H H H H HO OH H H H H HO HO OH H H R or S ? 2 R or S ? 2 R or S ? 2 R or S ? 2 oxidation #: 2 R or S ? 2 H O H HO H H H oxidation #: 2 oxidation #: 2 oxidation #: 2 1) stereochemistry ( R or S ) of the designated carbon centers: pregnenolone 2) oxidation numbers of the designated carbon atoms: oxidation #: 2 II . (10 points) Write in the boxes below the expected hybridization of each of the indicated atoms (i.e., sp 3 , sp 2 , or sp) in the following molecules. O O O N N H H H H 2 hybridization : 2 hybridization : 2 hybridization : 2 hybridization : 2 hybridization : III . (10 points) For each of the following pairs of compounds, predict which compound is more acidic.
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 06/22/2008 for the course CHEM 215 taught by Professor Koreeda during the Fall '07 term at University of Michigan.

Page1 / 5

215%20F07-E1-pp%202-6 - Remember "Lone pair-assisted...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online