(hint: Carbene or related Intermediates) OTBS OTBS 1. CBr4. PPhg OHCYYOPMB 2. Buli, THF, -78 °C, 85°. YYYOPME
Give the FULL mechanism for the synthesis of the product 1) BuLi, Et20,- 78 → .45 °C, 1 h 2) > Et20 TBSO / -78 .25 °C. 5 h 151 SS HMPA/E20, - 780°C OTBS -NHTS OTBS 152 TBS 56 % 150 153 Raney Ni EtOH, H2, r.t 69 % 155 154
need help with A, B, C, D, E, and F 3. TRUE or FALSE: TF TF TF c. a. f(x) dx = Is dit b. 1f fix) >for as x sb then / xdx must be > 0 5x)g(x)dx = 1/(x)da) (J8(x)}cx) d. f(x) + g(x)\dx = f(x)dx + [g(x)dx TF er x)dx gives us the total distance travelled between time -a to time -b when f(x) is the velocity. . sende 0 then f(x) must be =0 for as...
Name: Discussion TF: BUD: Discussion section: 6) Provide the initiation, propagation steps and 3 lermination steps for the reaction below. oo.. so.org initiation propagation termination
CHANNEL oo oo oo C 15 x 40 A36 Steel BOLTS 5/8" DIAM 10 in. (a) Determine the net area (An). (b) Determine the reduction factor (U). (C) Determine the effective net area (Ae) (d) Determine the design strength
5. (2+2+3 Points) Consider the linear wave equation for-oo <エ<oo,-oo < t <oo for - oo<<oo for utt-c2uzz = f(x, t) tr(r,0)- (r) _oo < x < oo. a. Sketch the domain of dependence of the point (,t) (4, 1) in the (x, t)-plane in 1. case c = 2, Do the same in the case c b. State the general solution forrnula for this problem! in terms of the data f, φ, ψ. c. Now suppose ψ = 0...
Draw the structures of organic compounds A and B. Indicate stereochemistry where applicable. 1) BuLi H-C C-H 2) CH3CH2Br (1 equiv.) HC CH2Cl2 Br2 (1 equiv.) Pd/C There is additional feedback available! View this feedback by clicking on the bottom divider bar. Click on the divider bar again to hide the additional feedback. Close A Previous Give up & View Solution Try Again Next Exit
Test Object Object Ti (°C) Water Ti (°C) Object + Water Tf (°C) Water DT = Tf - Ti (°C) Object DT = Tf - Ti (°C) Object mass (g) Water Mass (g) Steel bolt 81 C 20 C 36 C 16 C 65 C 46 g 150 g The heat lost by the hot bolt is equal to the heat gained by the water in the calorimeter. Use the equations provided in the eScience manual and what you know...
5. Let R be equipped with the Fort topology TFp, defined by TF,-(U C R l p ¢ U or R-U is finite), with pER a point. (i) Is (R, (i) Is (R, TFp) path-connected? TF) connected? 5. Let R be equipped with the Fort topology TFp, defined by TF,-(U C R l p ¢ U or R-U is finite), with pER a point. (i) Is (R, (i) Is (R, TFp) path-connected? TF) connected?
7) Predict the product of each of the following reactions. i) H3o s n-Buli i) Et b) H30 c) O Et2Culi ) H30 d) HO Ag2O, THF, H20 e)