CS9100656A2
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1991-11-12
Method of 1,1,1-trifluorochlorethane and 1,1,1,2-tetrafluorethane preparation
HU8902302D0
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1990-05-28
Process for preparation of 1,2-hydroxy-phosphonates and derivatives thereof
RO103936B1
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1992-05-08
Aminoacetyl-oxohexyl derivative of 1,3-dimethyl-xanthin and preparation method
PL276098A1
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1990-06-11
Method of obtaining 2,3-dibromide-2-butene-1,4-diole
CS51189A2
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1991-03-12
Method of 1-methoxy-2-propanone preparation
CS811588A1
(en )
1990-03-14
2,2,6,6-tetramethyl-4-piperidyliden-acetone and method of its preparation
CS415188A1
(en )
1989-04-14
3-substituted 4-imino-1,2,3,4-tetrahydroquinazoline-2-thiones and method of their preparation
CS719788A1
(en )
1990-09-12
Substituted 1,1,3-trichloro-3-phenylpropanes and method of their preparation
CS275585B2
(en )
1992-02-19
Substituted 1,1,1,3-tetrachloro-3-fenylpropanes and method of their preparation
CS279089A1
(en )
1990-08-14
Method of 1-amino-7-naphthol preparation
CS908588A1
(en )
1989-09-12
Method of bis-/2,4-dimercapto-6-triazinyl/-disulphide preparation
RO105695B1
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1992-11-30
-hydroxidiphenylacetates of n-hydroxiethylene-piridinium-2,4,6-perchlorated trisubstitutes and preparation process thereof
CS811788A1
(en )
1990-03-14
(2,2,6,6-tetramethyl-4-piperidyliden)-2-propanol and method of its preparation
CS18089A1
(en )
1989-09-12
Method of new 2,3 -dichlorobenzhydrylamines and their salts preparation
BG45918A1
(en )
1989-09-15
Esteramids of 2- phenyl- 1h- inden- 1, 3 (2h)- dioni and method for their preparation
BG43081A1
(en )
1988-04-15
Derivatives of 1, 3- dihydro- 2h- imidazol- 2- ons and method for their preparation
BG43082A1
(en )
1988-04-15
Derivatives of 1, 3- dihydro- 2h- imidazol- 2- ons and method for their preparation
CS811688A1
(en )
1990-03-14
(2,2,6,6-tetramethyl-4-piperidyl)-2-propanon and method of its preparation
PL280448A1
(en )
1991-01-14
Method of obtaining 1,2-benzoisothiazolinone-3
PL285488A1
(en )
1991-12-16
Method of obtaining 16ΓΏ-methylhydrocortisone and its 17 and 17, 21-diacyl derivatives
CS19290A2
(en )
1991-07-16
Method of 2,3-diarylquinoxalines preparation
CS275392B2
(en )
1992-02-19
2-acetamido-2-deoxy-beta-d-glucopyranozylmethylamine and method of its preparation
CS275391B2
(en )
1992-02-19
2-acetamido-2-deoxy-beta-d-glucopyranozylnitromethane and method of its preparation
CS275039B2
(en )
1992-01-15
1-benzyl-6-bromo-2-benzothiazolinone and method of its preparation
CS14189A1
(en )
1990-02-12
2-isopentylthio-6-salicylidenaminobenzothiazole and method of its preparation