摘要:
Novel 1,3-dialkoxy 8.alpha.-estratriene compounds of the formula ##STR1## WHEREIN R.sub.1 is alkyl of 1-18 carbon atoms, R.sub.2 is alkyl of 1-5 carbon atoms and Ac is alkanoyl of 1-8 carbon atoms, are obtained by a three-step synthesis from a tetrahydroindane-5-one compound.
摘要:
Bicycloalkane derivatives of the formula ##STR1## wherein n is 1 or 2, R.sub.1 is lower alkyl, Acyl is alkanoyl, and Y is --S--R.sub.2, --SO.sub.m --R.sub.2, or ##STR2## wherein m is 1 or 2, R.sub.2 is alkyl, R.sub.3 is hydrogen or lower alkyl, R.sub.4 is acyl or phenyl optionally substituted with lower alkoxy, benzyloxy or alkanoyloxy; and Z is nitro, lower alkoxycarbonyl, lower alkanoyl, lower alkylsulfinyl, or lower alkylsulfonyl are useful intermediates in the total synthesis of steroids. The compounds are prepared by reacting a corresponding compound lacking the CH.sub.2 Y substituent with formaldehyde and a mercaptan or sulfinic acid, followed if desired by oxidation and optional salt condensation.
摘要:
Benzopyran derivatives of the formula ##STR1## wherein R.sub.1 and R.sub.3 each are lower alkyl; n is the integer 1 or 2; --A--B-- is >CH--CH.sub.2 - or >CH=CH-; X is a free, esterified or etherified hydroxy group; and Y is H or X and Y collectively are =O; and W is --(CH.sub.2).sub.3 --Z--R.sub.4 ##STR2## --(CH.sub.2).sub.3 --COOR.sub.6 or --(CH.sub.2).sub.3 CN, wherein V is halogen, Z is a ketalized carbonyl group or a free, esterified or etherified hydroxymethylene group; R.sub.4 and R.sub.5 each are lower alkyl and R.sub.6 is alkyl, aryl or aralkyl, are valuable intermediates in the synthesis of steroids.
摘要:
6,9-Oxido-9,10-seco-1,3,5(10),6,8,14-estrahexaenes, useful as intermediates in the total synthesis of steroids, of the formula ##SPC1##Wherein n is 1 or 2, R.sub.1 is lower-alkyl, R.sub.2, R.sub. 3 and R.sub.4 are H, alkoxy or acyloxy, X is a free or ketalized keto or free, esterified or etherified hydroxymethylene, are produced by the cyclization, with an acid catalyst, of a 9,10-secoestrane of the formula ##SPC2##Wherein R.sub.1, R.sub.2, R.sub.3, R.sub.4, X and n have the values given above, and Q is carbonyl or dialkoxymethylene. Hydrogenation produces the corresponding 6,9-oxido-9,10-seco-1,3,5(10)-estratrienes and 9-oxy-9,10-seco-1,3,5(10)-estratrienes.
摘要翻译:6,9-氧代-9,10-断-1,3,5(10),6,8,14-异己烯,其用作全合成类固醇的中间体,式为WHEREIN N IS 1 OR 2,R1 是低级烷基,R 2,R 3和R 4是H,烷氧基或酰氧基,X是游离或缩酮化酮或游离的酯化或醚化的羟基亚甲基,通过酸催化剂与9,10- 式WHEREIN R1,R2,R3,R4,X和n具有上面给出的值,Q是羰基或二烷氧基亚甲基。 氢化产生相应的6,9-氧化-9,10-断-1,3,5(10) - 三亚甲基和9-氧基-9,10-断-1,3,5(10) - 三亚甲基。
摘要:
Novel process for the preparation of 13.beta.-alkyl-4-gonene-3,17-diones of the formula ##STR1## wherein R.sub.1 is methyl or ethyl, consists of REACTING A 7A.beta.-ALKYL,5,6,7,7A-TETRAHYDROINDANE-1,5-DIONE WITH FORMALDEHYDE AND AN ARYLSULFINIC ACID OR AN ADDUCT OF FORMALDEHYDE AND ARYLSULFINIC ACID TO PRODUCE A TETRAHYDROINDANE DERIVATIVE;Hydrogenating the tetrahydroindane derivative with hydrogen in the presence of a palladium-, platinum-, or rhodium-containing hydrogenation catalyst to produce a perhydroindane derivative;Condensing the perhydroindane derivative in the presence of a proton-accepting agent with a 7,7-alkylenedioxy-3-oxooctanoic acid ester;Treating the product obtained with a strong aqueous base and then heating the product in an inert solvent to produce a 4,5-secosteroid;Hydrogenating the 4,5-secosteroid in the presence of a palladium-, platinum-, rhodium-, or nickel-containing hydrogenation catalyst; andHydrolyzing and cyclizing the hydrogenated 4,5-secosteroid by treatment with a strong acid.
摘要:
9,10-Secoestranes, useful as intermediates in the total synthesis of steroids, of the formula ##STR1## WHEREIN N IS 1 OR 2, R.sub.1 is lower alkyl, R.sub.2, R.sub.3 and R.sub.4 are hydrogen, alkoxy or acyloxy, X is free or ketalized carbonyl or free, esterified or etherified hydroxymethylene, and Y is carbonyl or dialkoxymethylene are produced by condensing, in the presence of a basic catalyst, ##STR2## WHEREIN X, n, R.sub.1, R.sub.2, R.sub.3, R.sub.4 have the values given above, and Z is Cl, Br or I, to produce a 9,10-secoestrane of the above formula wherein Y is a free carbonyl group, which can then, if desired, be ketalized to a corresponding compound wherein Y is dialkoxymethylene or like ketal group.
摘要:
Bicycloalkane derivatives of the formula ##STR1## WHEREIN N IS 1 OR 2, R.sub.1 is lower alkyl, X is carbonyl or free or etherified hydroxymethylene, and Y is --S--R.sub.2, --SO.sub.m --R.sub.2, or ##STR2## wherein m is 1 or 2, R.sub.2 is alkyl, R.sub.3 is hydrogen or lower alkyl, R.sub.4 is aliphatic acyl and Z is nitro, lower alkanoyl, lower alkylsulfinyl, or lower alkylsulfonyl are useful intermediates in the total synthesis of steroids. The compounds are prepared by reacting a corresponding compound lacking the CH.sub.2 Y substituent with formaldehyde and a mercaptan or a sulfinic acid, followed if desired by oxidation and optional salt condensation.
摘要:
9,10-Secoestranes, useful as intermediates in the total synthesis of steroids, of the formula ##STR1## WHEREIN N IS 1 OR 2, R.sub.1 is lower alkyl, R.sub.2, R.sub.3 and R.sub.4 are hydrogen, alkoxy or acyloxy, X is free or ketalized carbonyl or free, esterified or etherified hydroxymethylene, and Y is carbonyl or dialkoxymethylene are produced by condensing, in the presence of a basic catalyst, ##STR2## WHEREIN X, n, R.sub.1, R.sub.2, R.sub.3, R.sub.4 have the values given above, and Z is Cl, Br or I, to produce a 9,10-secoestrane of the above formula wherein Y is a free carbonyl group, which can then, if desired, be ketalized to a corresponding compound wherein Y is dialkoxymethylene or like ketal group.
摘要:
6,9-Oxido-9,10-seco-1,3,5(10),6,8,14-estrahexaenes, useful as intermediates in the total synthesis of steroids, of the formula ##SPC1##Wherein n is 1 or 2, R.sub.1 is lower-alkyl, R.sub.2, R.sub.3 and R.sub.4 are H, alkoxy or acyloxy, X is a free or ketalized keto or free, esterified or etherified hydroxymethylene, are produced by the cyclization, with an acid catalyst, of a 9,10-secoestrane of the formula ##SPC2##Wherein R.sub.1, R.sub.2, R.sub.3, R.sub.4, X and n have the values given above and Q is carbonyl or dialkoxymethylene. Hydrogenation produces the corresponding 6,9-oxido-9,10-seco-1,3,5(10)-estratrienes and 9-oxy-9,10-seco-1,3,5(10)-estratrienes.
摘要翻译:6,9-氧代-9,10-断-1,3,5(10),6,8,14-异己烯,其用作全合成类固醇的中间体,式为WHEREIN N IS 1 OR 2,R1 是低级烷基,R2,R3和R4是H,烷氧基或酰氧基,X是游离的或缩酮化的酮基或游离的,酯化的或醚化的羟基亚甲基,是通过用酸催化剂,9,10-隔离子 式中R1,R2,R3,R4,X和n具有上面给出的值,Q是羰基或二烷氧基亚甲基。 氢化产生相应的6,9-氧化-9,10-断-1,3,5(10) - 三亚甲基和9-氧基-9,10-断-1,3,5(10) - 三亚甲基。
摘要:
Novel benzopyran derivatives of the formula ##SPC1##Wherein R.sub.1 and R.sub.3 each are lower alkyl; n is the integer 1 or 2; --A--B-- is >CH--CH.sub.2 -- or >CH=CH--; X is a free, esterified or etherified hydroxy group; and Y is H or X and Y collectively are =O; and W is --(CH.sub.2).sub.3 --Z--R.sub.4,--(ch.sub.2).sub.3 --coor.sub.6 or --(CH.sub.2).sub.3 CN, wherein V is halogen, Z is a ketalized carbonyl group R.sub.4 and R.sub.5 each are lower alkyl and R.sub.6 is alkyl, aryl or aralkyl, are valuable intermediates in the synthesis of steroids.