Ruzicka Large Ring Synthesis L. Ruzicka et al., Helv. Chim. Acta 9, 249, 339, 389, 499 (1926). Formation of large ring alicyclic ketones from dicarboxyl

Rubottom Oxidation A. G. Brook, D. M. Macrae, J. Organometal. Chem. 77, C19 (1974); A. Hassner et al., J. Org. Chem. 40, 3427 (1975); G. M. Rubottom et al., Tetrahedron Le

Rothemund Reaction P. Rothemund, J. Am. Chem. Soc. 57, 2010 (1935); 61, 2912 (1939). Preparation of meso-tetrasubstituted porphyrins by condensation of

Rosenmund-von Braun Synthesis K. W. Rosenmund, E. Struck, Ber. 52, 1749 (1916); J. von Braun, G. Manz, Ann. 488, 111 (1931). Conversion of aryl halides

Rosenmund Reduction K. W. Rosenmund, Ber. 51, 585 (1918); K. W. Rosenmund, F. Zetzsche, ibid. 54, 425 (1921). Catalytic reduction of acid chlorides to a

Robinson-Schöpf Reaction R. Robinson, J. Chem. Soc. 111, 762, 876 (1917); C. Schöpf, Angew. Chem. 50, 779, 797 (1937). Synthesis of tropinones

Robinson Annulation W. S. Rapson, R. Robinson, J. Chem. Soc. 1935, 1285. Formation of six-membered ring α,β-unsaturated ketones by the additi

Ritter Reaction J. J. Ritter, P. P. Minieri, J. Am. Chem. Soc. 70, 4045 (1948); J. J. Ritter, J. Kalish, ibid. 4048. Synthesis of amides from nitriles a

Riley Oxidations ( Dioxide Oxidation) H. L. Riley et al., J. Chem. Soc. 1932, 1875. Oxidations of organic compounds with selenium dioxide; e.g., the oxi

Riemschneider Thiocarbamate Synthesis R. Riemschneider, F. Wojahn, Pharmazie 4, 460 (1949); Chim. Ind. (Paris) 64, 99 (1950); Pharm. Zentralhalle 89, 118 (1950).

Riehm Synthesis P. Riehm et al., Ber. 18, 2245 (1885); 19, 1394 (1886); idem, Ann. 238, 9 (1887). Formation of quinoline derivatives by prolonged heati

Reverdin Reaction F. Reverdin, Ber. 29, 997, 2595 (1896). Migration of iodine during nitration of iodophenolic ethers:

Retropinacol Rearrangement N. Zelinsky, J. Zelikow, Ber. 34, 3249 (1901). Conversion of an alcohol to the rearranged olefin on treatment with acid:

Retro-Diels-Alder Reaction Thermal dissociation of Diels-Alder adducts, occurring most readily when one or both fragments are particularly stable:

Reppe Chemistry The term designates that phase of chemistry involving the use of acetylene at high pressures in the presence of suitable catalysts to carry out the fundam

Reissert Synthesis A. Reissert, Ber. 30, 1030 (1897). Condensation of an o-nitrotoluene with oxalic ester, reduction to the amine, and cyclization to t

Reimer-Tiemann Reaction K. Reimer, F. Tiemann, Ber. 9, 824, 1268, 1285 (1876). Formation of phenolic aldehydes from phenols, chloroform and alkali:

Reformatsky (Reformatskii) Reaction S. Reformatskii, Ber. 20, 1210 (1887); J. Russ. Phys. Chem. Soc. 22, 44 (1890). Condensation of aldehydes or ketones

Reed Reaction C. F. Reed, US 2046090 (1933); US 2174110 (1934); US 2174492 (1938). Photochemical sulfonation of paraffins and cycloparaffins by sulfur d

Raschig Process F. Raschig, FR 698341 (1930), C.A. 25, 3012 (1931). Commercial process for the production of phenol by the hydrolysis of chlorobenzene,