The present study complies with different principles of environment friendly synthesis utilizing efficient instrumental techniques i.e.; microwaves and replacement of hazardous solvents with eco-friendly ones. The overall progress of chemical reactions achieved through application of environmental chemistry, was compared with the traditional methods. In the first part of this research work, synthesis of substituted ethyl 2-(4-nitrobenzylidene) hydrazinyl acetate was carried out for which, substituted benzoic acids were esterified to corresponding ethyl esters under the influence of microwaves followed by its hydrazinolysis. Substituted benzohydrazides thus obtained, were then reacted in a microwave oven with different benzaldehydes to get a series of substituted 4-nitrophenyl methylidene benzohydrazides. They were then changed into targeted products after reaction of substituted 4-nitrophenyl methylidene benzohydrazides with ethyl chloroacetate in the presence of dry acetone in anhydrous conditions by using microwaves. In the second series, naphthyl acetic acid was converted to ethyl naphthalen-1ylacetate followed by its hydrazinolysis. The compound 2-(naphthalen-1-yl) acetohydrazide thus, formed was reacted with different benzaldehydes under conventional and green technologies to get a series of substituted methylidene-2(naphthalen-1-yl) acetohydrazide. The targeted compounds were synthesized after their reaction of substituted methylidene-2-(naphthalen-1-yl) acetohydrazides with ethyl chloroacetate under anhydrous conditions. In the third series, substituted ethyl methylidene-1-[(2,4-dichlorophenoxy) acetyl] hydrazinyl acetate were synthesized by using 2,4-dichloro phenoxyacetic acid. After esterification of 2,4-dichlorophenoxy acetic acid ethyl (2,4-dichlorophenoxy) acetate was synthesized which underwent hydrazinolysis. The compound 2-(2,4dichlorophenoxy) acetohydrazide thus formed, was reacted with aromatic aldehydes and ketones to give methylidene-2-(2,4-dichlorophenoxy) acetohydrazide derivatives. Methylidene-2-(2,4-dichlorophenoxy) acetohydrazide on esterification under anhydrous conditions yielded ethyl methylidene-1-[(2,4-dichlorophenoxy) acetyl] hydrazinyl acetate. Similarly, in the fourth series derivatives of ethyl -1-[(4-chloro-2-methylphenoxy), acetyl]-2- hydrazinyl} acetate was synthesized after four steps of synthesis. Methyl xx chloro -phenoxyacetic acid was esterified in the first step to synthesize ethyl (4chloro-2-methylphenoxy) acetate which underwent hydrazinolysis to give 2-(4chloro-2-methylphenoxy) acetohydrazide. The compound 2-(4-chloro-2methylphenoxy) methylidene acetohydrazide was prepared after reaction of aromatic aldehydes and ketones with 2-(4-chloro-2-methylphenoxy) acetohydrazide. These Schiff bases were changed into targeted compounds after reaction with ethyl chloro acetate under anhydrous conditions. Comparison of both the conventional and microwave assisted reactions indicates a significant reduction in reaction times and improvement in reaction yields. Besides chemical characterization, some of the synthesized compounds (series-1 and 2) were evaluated for their phytohormonal ability on tissue culture raised Bougainvillea glabra explants and hydroponically grown sunflower seedlings. Series-2 compounds were also evaluated for anti-fungal activity. Some of them were found to possess the potential as plant growth promoter. Series-3 and 4 compounds were evaluated for cytotoxicity assay protocol against 3T3 cell line and anti-cancer activity on Hela cell line. Few of them were found to possess potential as lead compounds for drug discovery.
ابو ریحان قارئین معارف نے ۱۲ـ؍ نومبر کو ہونے والے بھیانک ہوائی جہاز حادثے کی خبر اخباروں میں پڑھی ہوگی، اس حادثہ میں راقم کے خویش ابو ریحان بھی جاں بحق ہوگئے جو ایک صالح اور صوم و صلوٰۃ کے پابند نوجوان اور مولانا امین احسن اصلاحی مدظلہ صاحب تدبر قرآن کے پوتے تھے۔ ہزار ضبط کے باوجود میرا پیمانہ صبر لبریز ہوگیا اور اپنے ذاتی حادثہ کی اطلاع دینے کے لئے مجبور ہونا پڑا، مرحوم کی جسمانی یادگار تین بچیاں ہیں جو ابھی دس برس کی بھی نہیں ہیں۔ اﷲ تعالیٰ غریق رحمت کرے، معصوم بچیوں پر رحم فرمائے اور ان کے اور حادثہ میں ہلاک ہونے والے سب ہی لوگوں کے غم زدہ اعزہ کو صبر جمیل عطافرمائے، آمین! (ضیاء الدین اصلاحی، نومبر ۱۹۹۶ء)
God has given us two kinds of commandments "al-awaamir wan-nawaahi" i.e. Biddings and forbiddings whose violation is called "sin”. Christianity and Islam both are divine religions and their teachings are God-gifted. Their followers are required to lead their lives according to the commandments of God in order to succeed. But with the passage of time, Christians started distortions within their law. They, therefore, promoted the belief that every man is a sinner by birth. Christians believe that Adam (PBUH) committed sin. Islam teaches that every child is innocent by birth. The holy Prophet (BPBUM) said: “Every child is born on Islamic nature and his parents cause him to be Christian, Jew or Magian". Despite being distorted, Christianity does possess yet such teachings that resemble Islamic teachings. If these teachings are followed the mankind can be reformed though these teachings have its limitations. Islam is a final and ultimate religion and its teachings are, valid up to the day of resurrection. Also, these teachings have not been distorted. Islam has described each and every sin in detail more than the Christianity. If one follows Islamic teachings be can achieve success and salvation.
Micro Data use to understand aggregate macroeconomic relationships is increasing after critique by micro-economists on the census data sets, especially after the recent Global Financial Crisis. ln Pakistan, work on investment was done using Census of Manufacturing Industries (CMI) Data. In this study of investment function, relationship is tested with micro Balance Sheet data. Data was constructed for this purpose of non-financial registered firms in Karachi Stock Exchange (KSE) from 1988 to 2011 of 323 consistent firms. Empirical work is done by using Panel data estimation approaches. Different investment theories are tested through a nested approach. Empirical results in Pakistan do match with established theories of investment. lnvestment relationship is established by using Jorgenson neo-classical model, accelerator theory based on sales. Tobin‘s q-ratio theory, capacity utilization theory, and financial constraints theories. It is found that cash flow, q-ratio, firm size, and taxes are statistically significant. Marco variables like GDP, exchange rate, and average lending rate affect investment in Pakistan