Reference

Preparation of 2-cyanamino-4,6-dialkoxy-1,3,5-triazines as intermediates for herbicides and plant growth regulators

Preparation of 2-cyanamino-4,6-dialkoxy-1,3,5-triazines as intermediates for herbicides and plant growth regulators. Riebel, Hans Jochem (Bayer A.-G. , Fed. Rep. Ger.). Ger. Offen. DE 3515287 A1 6 Nov 1986, 17 pp. (Germany) CODEN: GWXXBX. 20611-81-8 and 3638-04-8 which are cas registry numbers are also used here. CLASS: ICM: C07D251-46. APPLICATION: DE 85-3515287 27 Apr 1985. DOCUMENT TYPE: Patent CA Section: 28 (Heterocyclic Compounds (More Than One Hetero Atom)) Section cross-reference(s): 5 The title compds. (I; R = H; R1, R2 = alkoxy) are prepd. as intermediates for guanidine herbicides and plant growth regulators (no data). Thus, 2,4-dichloro-6-methoxy-1,3,5-triazine was treated Na2NCN in aq. Me2CO, to give I (R = Na, R1 = Cl, R2 = OMe), which upon treatment with dil. HCl gave I (R = R1 = H, R2 = OMe). This was treated with MeOH to give I (R = H, R1 = R2 = OMe). .

Guanidine derivatives

Guanidine derivatives. Moriya, Koichi; Pfister, Theodor; Riebel, Jochem; Eue, Ludwig; Schmidt, Robert R.; Luerssen, Klaus (Bayer A.-G. , Fed. Rep. Ger.). Ger. Offen. DE 3334455 A1 6 Sep 1984, 134 pp. (German). (Germany). CODEN: GWXXBX. CLASS: IC: C07D239-42; C07D239-47; C07D251-26; C07D413-12; A01N047-44. APPLICATION: DE 83-3334455 23 Sep 1983. PRIORITY: DE 83-3307679 4 Mar 1983. DOCUMENT TYPE: Patent CA Section: 28 (Heterocyclic Compounds (More Than One Hetero Atom)) Section cross-reference(s): 5 Herbicidal plant growth inhibiting (no data) RR1NC(:NR2)NHR3 [R = H, R4S(O)n, (un)substituted alkyl, cycloalkyl, alkenyl, alkynyl; R1 = H, OH, Me3Si, R4S(O)n, (un)substituted alkyl, cycloalkyl, alkenyl, alkynyl, aryl, heterocyclyl, amino; RR1N = heterocyclyl; R2 = H, R4S(O)n; R3 = halo, cyano, HCO, (un)substituted alkyl, alkoxy, heterocyclyl, amino; R4 = (un)substituted alkyl, aryl, heteroaryl; n = 0-2] and their tautomers and salts were prepd. Thus, 4,6-dimethylpyrimidine was condensed with Na2NCN to give 2-(cyanoamino)-4,6-dimethylpyrimidine. 20611-81-8 which is the cas registry number of one of substances is just one of reagents here. This was treated with MeONH2.HCl to give N-(4,6-dimethyl-2-pyrimidinyl)-N'-methoxyguanidine. This was acylated with 2-ClC6H4SO2Cl to give diacylated guanidine I. .