摘要:
Insecticidally active vinyl-cyclopropane carboxylic acid esters of the formula ##STR1## are prepared by reacting ##STR2## in which R.sup.12 is a radical selected from the group consisting of ##STR3## with an alcoholate of the formulaM--O--R.sup.8.Various processes for making the intermediates are also described. Many of the intermediates and end products are new.
摘要:
A process for preparing dihydroxycyclobutenedione (''''squaric acid'''') and squaric acid complexes and salts which comprises electrochemical cathodic reductive cyclotetramerization of carbon monoxide to produce the squarate anion, while preventing anodic reactions from substantially interfering with the cathodic reductive reaction.
摘要:
FRAGRANCE MATERIALS PREPARED BY ACYLATION OF TRIMETHYL CYCLODODECATRINE, DIHYDRO AND TETRAHYDRO DERIVATIVES THEREOF, PROCESSES FOR PRODUCING SAME, AND PURFUME COMPOSITIONS CONTAINING SUCH MATERIALS.
摘要:
PRODUCTION OF ALK-1-EN-6-ONES BY REACTION OF AN ALK-1EN-4-OL AT FROM 100* TO 400*C. WITH A KETONE BEARING AT LEAST ONE HYDROGEN ATOM ON A CARBON IN VICINAL POSITION TO THE CARBONYL GROUP.
摘要:
Tricyclo (5,4,0,03,9) undeca-5,10-dien-2-ones and tricyclo (5,4,0,03,8) undeca-5,9-dien-2-ones which are useful in the perfumery art and a process for their preparation from phenols and cyclohexenones.
摘要:
SYNTHETIC ROUTES TO EACH OF FOUR CRITICAL COMPONENTS OF THE BOLL WEEVIL SEX ATTRACTANT COMPLEX ARE DESCRIBED. EFFECTIVE MIXTURES OF THE SEVERAL COMPONENTS EQUAL TO OR BETTER THAN THE NATURAL ATTRACTANT ARE DISCLOSED.
摘要:
D-Homosteroids of the formula ##SPC1##Wherein R.sup.3 .alpha. is hydrogen, R.sup.3 .beta. is hydrogen, lower alkanoyloxy or aroyloxy and R.sup.3 .alpha. and R.sup.3 .beta. taken together are oxo; R.sup.13 is lower alkyl; R.sup.17a .beta. is hydrogen, lower alkanoyl, aroyl or lower alkyl; R.sup.17a .alpha. is hydrogen, lower alkyl, ethynyl, 1-propynyl, vinyl, chloroethynyl, butadiynyl or propadienyl and the dotted line in the A-ring denotes an additional carbon bond in either the 4,5- or 5(10)-position and processes for the preparation thereof are disclosed.The D-homosteroids of the present invention are useful as contraceptives and regulators of the female menstrual cycle.
摘要翻译:式中的D-类固醇,其中R3为氢,R3为氢,低级烷酰氧基或芳酰基,R3和R3为一起为氧代; R 13是低级烷基; R17aβ是氢,低级烷酰基,芳酰基或低级烷基; R17aa是氢,低级烷基,乙炔基,1-丙炔基,乙烯基,氯乙炔基,丁二炔基或丙二烯基,A环中的虚线表示在4,5-或5(10) - 位中的另外的碳键, 公开了其制备方法。
摘要:
Process for the preparation of oxygenated unsaturated cycloaliphatic compounds useful as perfuming and odour-modifying agents in the manufacture of perfumes and perfumed products, and as flavouring and taste-modifying agents in the aromatization of foodstuffs in general and imitation flavours for foodstuffs, beverages, animal feeds, pharmaceutical preparations and tobacco products. Composition of matter relating to some of said oxygenated unsaturated cycloaliphatic compounds which are new and perfumeand flavouring compositions containing same.