Organocatalysis Episode 3 potx

... Me 4 NHB(OAc) 3 -mediated reduction. The direct r e ductive amination was carried out using NaHB(OAc) 3 ,BnNH 2 and acetic acid. Biomimetic Organocatalytic C–C-Bond Formations 53 Our biomimetic C 3 +C n concept ... al. 1990). The first step of the total synthesis of 31 is the (R)-proline-catalyzed aldol reaction between 4 and 32 , which gave the aldol adduct 33 with a good yield (69%...

Ngày tải lên: 12/08/2014, 16:21

... = 2. Find a) P(N2 = 1, N3 = 4, N:, = 5), b) P(N4 = 3 I N2 = 1, N3 = 2), d) P(N[2,7] = 4, N [3, 8] = 6), e) E[N[4,6] IN[1,5] = 31 . Show that for any fixed k ... For example, let a = c = Xo = 3 and m = 5. Then the sequence obtained from the recursive formula X,+l = 3X, + 3 (mod 5) is 3, 2,4,0 ,3, which has period 4. In the speci...

Ngày tải lên: 12/08/2014, 07:22

... usable temperature (EC) Maximum usable temperature (EF) 79 175 121 35 0 93 200 110 230 135 275 177 35 0 177 35 0 177 35 0 177 35 0 177 35 0 Water resistance Good to excellent Poor to fair Good to excellent Excellent ... Organo-Clay Dropping point (EC) Dropping point (EF) 110 230 1 63- 177 32 5 -35 0 096-104 205-220 135 -1 43 275-290 177-204 35 0-400 260+ 500+ 260+ 500+ 26...

Ngày tải lên: 12/08/2014, 16:20

... aldehydes a Entry Ar 3 Yield (%) cis/trans b 14-ClC 6 H 4 a 53 81:19 2 4-BrC 6 H 4 b 49 80:20 3 4-MeO(CO)C 6 H 4 c 70 79:21 44-F 3 CC 6 H 4 d 44 77: 23 53- FC 6 H 4 e 52 78:22 63- ClC 6 H 4 f 61 79:21 7 3- BrC 6 H 4 g ... (S)-7- azaindoline α-amino acid. Synth 33 0 33 3 Ullah E, Rotzoll S, Schmidt A, Michalik D, Langer P (2005) Synthesis of 7,8-benzo-9-aza-4-oxabicyclo [3. 3.1]nona...

Ngày tải lên: 12/08/2014, 16:21

... code: 3. 3; UN No.: 1866; MFAG: 31 0; Ems: 3 05; GGVEiGGVS: Class3 No. 31 C; RID/ADR: Class 3 No. 31 C; ADNR: Class 3 No. 31 C, Cat.; ICAO/IA- TA-DGR: 3, 1866 111; exception can be applied for ... 28 -35 -C. The necessary precautions must be taken to prevent electrostatic pick-up. The following regulations apply for the transport of UP resins: GGVSee/IMDG code: 3. 3; UN...

Ngày tải lên: 12/08/2014, 16:21

... hardness) 31 .5 – with HSS drills, ranging from φ10 to 60 mm. 13 C M is derived from experimental data, typically: Carbon steel (construction) 33 .8, Grey CI 23. 3, Malleable CI 20 .3, Bronze ... (mm): Over /up to - /3 Over/up to 3/ 10 Over/up to 10/50 Over/up to 50/180 Over/up to 180/400 Over/up to 400/800 IT5 0.6 0.8 1 .3 2.2 3. 2 4.5 IT6 0.9 1.2 1.9 3. 1 4.6 6.4 IT7 1.4 1.9 3...

Ngày tải lên: 13/08/2014, 05:20

Ngày tải lên: 13/08/2014, 05:20

... furnace 45 24 101-120 1 230 / 13 1 O/ 135 O0C oil 400 + natural gas, 400 Nm3/hour 1972 6x20 ~3 6 7.5 4x8 10 0.7 0.2-0.5 2 4 1 2850 (33 % CU) 30 0 -35 0 230 15 no 150 (ladle ... 5.9 3. 1 6 .3 0 .3 0.8 2 6 1 31 23 (34 .8% Cu) 191 205 157 68 (converter dust, leach plant residue, gypsum) 77 purchased scrap ambient 27 -33 69-75 1770 (6...

Ngày tải lên: 13/08/2014, 05:20

... H c (Oe) (Oe) (B e H d ) max. Density MGOe kJ/m 3 B r mT H c kA/m H ci kA/m MGOe kJ/m 3 lb/in 3 g/cm 3 3.4 27.1 38 00 38 0 36 00 285 4000 32 0 13. 0 1 03. 0 0.175 4.85 Magnetic Coatings. Some magnetic ... Notes Alnico 5 930 ° 32 00 5400 47 1 630 ° Aluminum, nickel, cobalt Alnico 5-7 930 ° 5700 5000 1 630 ° Aluminum, nickel, cobalt Alnico 5DG 930 ° 35 00 5200 1 630 ° Aluminum, ni...

Ngày tải lên: 13/08/2014, 05:20

... endmills, on the other, hand can never be replaced in close semi-finishing and finishing of complex 3D (shapes) geometries. In the next article in the Die & Mould series “Application technologies” ... wall. This means Large chip thickness at very low v c . Max chip thickness at recommended v c . 23 THE VERSATILITY OF ROUND INSERT CUTTERS If the rough milling of a cavity is done with...

Ngày tải lên: 13/08/2014, 05:20