Thienes

Phan-Thien, N. and Tanner, R.T., 1977. A new constitutive equation derived from network theory, Non-Newtonian Fluid Mech. 2, 353-365. [Pg.16]

Solution of the flow equations has been based on the application of the implicit 0 time-stepping/continuous penalty scheme (Chapter 4, Section 5) at a separate step from the constitutive equation. The constitutive model used in this example has been the Phan-Thien/Tanner equation for viscoelastic fluids given as Equation (1.27) in Chapter 1. Details of the finite element solution of this equation are published elsewhere and not repeated here (Hou and Nassehi, 2001). The predicted normal stress profiles along the line AB (see Figure 5.12) at five successive time steps are. shown in Figure 5.13. The predicted pattern is expected to be repeated throughout the entire domain. [Pg.157]

Michael P. Thien, Se.D., Senior Research Fellow, Merck Co., Inc. Member, American Institute of Chemical Engineers, American Chemical Society, International Society for Pharmaceutical Engineers (Section 22, Alternative Separation Processes)... [Pg.17]

Chemical Neme 4-(9,10-Dihydro-4H-benzo[4 61 cyclohepta [1,2-b]thien-4-yIidene-1 -methyl-piperidine hydrochloride... [Pg.1263]

Phan-Thien N, Atkinson JD, Tanner RI (1978) J Non-Newt Fluid Mech 3 309... [Pg.178]

To date, all saturated and unsaturated three- and larger-membered ring sulfones and sulfoxides (e.g., thiirane (3), thiirene (4), thietane (5), thiete (6), dithietane (7), thiolane (8), thiolene (9), thiane (10), thiene (11), dithiane (12), thiepane (13), thiocane (14), and their unsaturated analogues as well as isomers and closely-related systems) have been synthesized and their chemistry well-established. [Pg.382]

Similarly, enamino vinyl sulfones (345) can undergo a thermally allowed electrocyclic reaction between the termini of the enaminic double bond and the allyl sulfonyl portion in the intermediate anion (346) to afford a, /1-unsaturated thiene dioxides (348) as shown in equation 126335. [Pg.469]

The trapping of both sulfines and sulfenes with dienes is probably the method of choice for the preparation of 3-thiene oxides and dioxides, respectively143,337. [Pg.469]

Thiazepinones, as photolytic products 883 Thiazine 1-oxides, synthesis of 323, 352 Thiene dioxides formula of 382 synthesis of 469 Thiene oxides formula of 382 synthesis of 469... [Pg.1208]

Bromo- (61, R = Br) gave 3-(thien-2-yl)-6-trifluoromethyl-2-quinoxalinamine (61, R = thien-2-yl) [tributyl(thien-2-yl)tin, (Ph3P)2PdCl2, Cul, THF, reflux, h 98%] also other heteroaryl analogs likewise. ... [Pg.105]

The lithiated 2-(thien-3-yl)quinoxaline (202) gave a mixture of linear di- and polyadducts that were immediately oxidized to a separable mixture of... [Pg.127]

Chloro-2-(A(-methyIhydrazino)quinoxaline 4-oxide gave 6-chloro-2-[A( -(fur-2-ylmethylene)-A(-methyIhydrazino]- (232, X = O) (2-furaldehyde, dioxane, reflux, 1 h >95%)" or 6-chloro-2-[A(-methyl-A( -(thien-2-ylmethylene) hydrazinojquinoxahne 4-oxide (232, X = S) (2-thiophenecarbaldehyde, dioxane, reflux, 1 h 91%). ... [Pg.302]

Chloro-2-[A -methyl-Af -(thien-2-ylmethylene)hydrazino]quinoxaline 4-oxide (288, R = H) with 2-chloroacrylonitrile gave 8-chloro-4-hydroxy-l-methyl-... [Pg.311]

Quinoxalinedicarboxylic anhydride (47) and 2-amino-4,5,6,7-tetrahydroben-zo[Z ]thiophene-2-carboxylic acid (48) gave 3-[iV-(3-carboxy-4,5,6,7-tetrahy-drobenzo[/7]thien-2-yl)carbamoyl]-2-quinoxalinecarboxylic acid (49) (EtOH, reflux, 30 min 80% analogs likewise). [Pg.325]

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